OffiCIAL PUBLICATIONS Of CORNELL UNIVERSITY, Slides of Inorganic Chemistry

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OffiCIAL PUBLICATIONS

Of CORNELL UNIVERSITY

VOlUM!. VI (^) NUMBER 11

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COLLEGE OF ARTS AND SCIENCES

ANNOUNCEMENT OF THE

DEPARTMENT OF CHEMISTRY

• MAY 15. 1915 PUBU5HED BY CORNE LL UNIVER5IH ITHACA. NEW YORK

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OFFICIAL PUBLICATIONS

OF CORNELL UNIVERSITY

VOLU,\ IE VI NUMBER 11

COLLEGE OF ARTS AND SCIENCES

ANNOUNCEMENT OF THE

DEPARTMENT OF CHEMISTRY

MAY 15. 1915 PURU SHE D BY CORNELL U NIVERSl l Y ITHA CA. NEW YORK

TABLE OF CON TENT S

Staff of 1nstruction of the Dcpartrn(·nt of Chemistry. General Equipment and (\lcthods of 1n 5trl1('\ion. The Chemical L aboratories The :\Illse um The De;xlTtment Libr:lry 1 ntro:luctory Inorganic Chcmi~try Advan ced inorg:lnic Ch l'mi3try Qualitati,' c and Qu,mtitati\ 'e .\ nalysis ..Vh·anced Quantitati, 'C An31ysis Assaying. Optioochcmical 1I1cthorls Gas Analysis Chcmical 1IIicroscopy Organic CIH~mistry Physical Chcmistr}' El ect rochemistry Sanit ary Chcmistry an rl Toxicoltlgy t\gri cultu ral Chemistry Seminary Research Fcllowships and ( ;ra(l llate SdlObr~hil' in Chemistry George Chapman C31dwell Priz ~ Cour ses of I nstruction offered by t he Departm e nt of Chemistry Th e Deg ree of B3 chdor of Chemistr~· R ~'<lu ir ed Courses Takcn ()lIt~ide of tht· Department hy Candi,lat~'"S for the Ikgree of Bachelor of Chemistry 1Ilathematics English Drawing Physics G eology :\lffhani cs of Engineering 1I 1cchanical Laborat ory El ectrical Engineering La horatory Courses in Chemistry of General Interest t o St\ldent~ not Candidates f"r the Degree of B:l l"helor of Chemistry Cour ses in Ch ~mistry Offere<l <luring the Sl11ll!lll.T S ~ %i<)n Gr adu:lte \' o rk in Ch emistry Holders of the S:lge Fellowtihip in Chemistry since 1 90" Holders of the Univcrsity Graduate s.,·holarship in Chemistry since 190.
Recipient of the George Chapman C:lldwe!1 Prize in Chemistry Advanced Degrees ..\ warded since 1 90J to Students Taking their :\lajor Subjffts in Chemistry Graduate Students 19 1-1 - 15 Undergraduat e!; Registercd for t h(' Degree of B:lchcl()r of Cheillistry 19 1-1 - 1S Table Showing the ;!lllnhl'r of Stulcnts Regislere.l in the ])e]">;\rl111CIII of Chcmistry 5i1]('(' 1')0". Index

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STAFF OF INSTRUCTION OF THE DEPARTMENT

OF CHEMISTRY

Louis :\llI:lroc Dennis. Ph of th e Dep artment. William Ridgely O rndorff. Chemistry.

B .. B.S .. l' rofcs,;"r " f [nr)rganic Chemist ry and I'lead in Uni"(~rsit)· .-\ven ue

. .B .. Ph. D. Pr .... fl"!;~(Jr .,f Organic and Physio!ogkal 1:102 E. Seneca Street Wil (k"1" Dwight lkm<:roft. ..B. , Ph ,]) .. Pr ofessor ( of Ph ysica l Chemistry. i Ea st :\ ,' enue George Walt er Cavanau gh. B.S .. PrrAt,»-w r <)f Chemistry in its Rela tions to Agri cultur e. 21i" Willard .\'enne Emile 1I[onnin Ch:nn ot. B.S .. PhlJ .. Pr(,fessor of Samtary Chc·mistry and T o xi cology. '-Pi l·:" st State Street Art hur W('S!cy Browne. B.S .. :'II.S .. Ph.D .. Pmfessor ()f Inorganic and .\nalyli cal Chemistry, 9Si Ea st Slate Strct:t Lewi s J osephus Cros,;. A.B .. Ph. D .. Proft-;;sor of : \gri c ultun.l Clwm ist ry. 9J.1 Ea st State Street Gu stav Ernst Frede rick Lund ell. .'.B .. Ph.]). , .\ ".sistant l' rof,:,-,;so r of Analyti cal Chemistry. .122 i'llitche ll Street Ross Peter And erson. A.B., Ph.D ., :\s~istant I'rofeo;sor of Gas .\ nalysis and Optieochemical :\Ieth ods. 962 Ea st State Street Thomas Roland Briggs. A.B .. Ph. D .. :\ ssi~ta n t Prof .. ssor of Phy sical Chelllistry and Elec trochemist ry, 20, Catherin~' Str<:et Harry Westfall Redfield. B.S., Ph , D. , Inst ru ctor in S;-m itar y Chcmbtry. .," Fall C reek Dri"e Th omas Whi tney Benson Welsh, AB .. Ph .D ., Instructt>r in Inorganic Chemistry, . 11 11 )/orth Ti oga Street Bu rton Ju dson Lemon , A.B .. Ph D .. In str uc to r in :\n alytieal CIH.~11listry.

201. Eddy Str('('t f r ank Elmo re Rice. A. B ., Ph.D .. I nstructo r in .\ grieult ural Chemistry. 80 .. Ea st Seneca Stree t Samuel :\rth ur i'llahood , B.Sc. , :\ 1. A. , I nstructor in Organic Chemistry.

Assistants in Chemist ry OE,'er R alph Ol ·erman. A.B.. :.:\1. Ar thur Benning R ay. 13..\ .. i'l1..\ .. Clifford Coutant Rose. B.Ch em .. Edward Lawrence 1Ilaek. B.S .. Harry J oseph Con li n. B. ChCIll., John Jrn;eph K ennedy, B.Chcm .. Harold Walt er Elley. B, Se .. il1..-., Car! J ohn Engcl de r. A.B .. B.Chclll., Harold Selden Bennett, A.B .. Charles Vi,·ian Smith. A.B .. fran cis W ebber Sherwood. B.S .. :\1. ..

.p6 E.1 St Buffalo Street

.;05 Dr yde n Ro.1d 1 0,) Highland Place Y. i'l 1. C. A. Y.:\1. C. A. lOS Bool Street 92 I Ea st State Stree t ,;05 Dryden Ro ad .;05 Dryd en Ro ad I Grove Place 80 .. Ea st Seneca Street 50,~ Dryd en R oa d

DEPARTilJE:-JT OF C HID I! STRY (^7)

Clifford Stone Cooley. B.Chem., \Yilliam Fran cis Flynn. B.Chem., Howard Irving Cole. B.Chem .. J. t\llington Bridgman. B,Chem .. Gordon Owen Crag,,-all. 1 \ B ., Felix illorse Fr ederiksen , :.B .. Daniel Chaunce y :ll cCoy. Frederick R aymond Goorgin., Clarence Netzen. William Ki rk. A.B .. :\I.A .. Ismond Ellis Knn.pp. jr .. Joseph Koller. B. Chem., Arthur Ayling Bl ue. Will iam Arthur Schnedeker. Frank Howell 1'0l1 ard. Warren Lafayette :\loody. B_S., Donald Kiteley Tressler, .'. .. Loon E. J enks, B. S .. ilLS .. A, illortimer Er skine, B.Chem .. iIIark H. Stratton, Joh n Graham Thomp son ,

,308 Stewart ..\ \TIlUC 50'; Dryden Roa (j 305 Oak Avellu~ 121 Colle~e 1\ 'cllue .)O.~ Dryden R oad I i South !\'enue (; South Avenue Fil tration Plant w:; Dryden R oad .~ ():; Dryden R oad .B i :--': orth Tioga Street F orest H ome (; Soulh Awnu e 505 Dr yden R O'ld 50S Dryden Road :[or5e Hall 1 0<) C:lthcrine Street 110 H ighhnd Ph ce 50S Dr yden Road 600 University '\'C. 230 Willard Way

GENERAL EQUlPMENT AND METHODS OF INSTRUCTI ON T he chemical laboratories, i\ [orsc Hall, contain a floo r space of over 90,000 square feet. They arc provided wi th four lecture rooms, one S<'ating thrce hundred and ni nety st udents, The another lighty, and each of the othcrs sixty·two, Chemiul and also with fou r recitation rooms. T he l ectur e Laboratories rooms arc furnished with all necessary app li ances for the ill ustration of lectures by experiment an d by lantern projection. and are proyided with adjacrnt preparation rooms. F or elementary work in inorganic chemistry and in qualita · t ive a nd qua n titative analys is, t.h("Te arc three large laboratories ron · taining in the aggregate places for twelve hundred and ei ghty students \'or king in sections. j n addition to these arc four rooms for organic chemi stry and a research laboratory for advanced work in that field, a special laboratory for microchemical analysis, one for water and food analysis, together with a large research laboratory, a special Illuseum, t \" o incubator rooms, an d one sterilizcr room, threc rooms for ass.'l.ying, t wo with northern exposure for gas analysis, a fire· proof room for work with highly inflammable substances, a labor a· tory for organic ultimate analysis by combustion provided with powerful ventilation and wit.h special balall~s, a hy drogen sulphide room connected with strong fan exhaust for work with noxious gases. an electric furn ace labomtory, t\·o large rooms for advanced in- organic chemistry, toget her with t\·o smallcr ones for research in this field, a room for spectroscopic chcmical analysis with a photo· graphic dark room and a mercury-pump room adjoining, a large laboratory for elementary work in physical chemistry, one for dectroehemistry, one fo r undergraduate TCscarch, one for graduate \·ork, and a large room for ach'anccd work in agricultuml chemistry. The stu dent laboratories contain in the aggregate plac('s for over nineteen hundred students working in sections, or eight hundred stu dents ,,·orking at once. In the sub-basement there is a C() n stant tempcmture rOOI11, a dy l 1an~o room containing motors and a high pressure blower f or air blast, a room fo r the storage of orcs, two othcrs fo r the storage of highly inflammable chemicals. and a number of stock rooms. T hree general supply rooms. from which all stu· dents draw the chemicals and appamtus for usc in their work, arc centrally located in the building. one above another, and connected

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•• CO^ LLEGE^ OF^ t\RT^ S^ AND^ s^ elE^ Ne l^ ::S

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A I'r~l~ht Room

Mor se H all--P1arl of Fir st Floor IS/ladod .....,a. unU~3'·3<.,j) lJ E I"" ... c Purnace ROO)m (" ('MW)' It",,". D 1l1""'cr Room, contallllnw '''~~Lnor)' ro, "e""la!,,,n 01 In ..... lo,b••ralorWs ~;I' C')Il.t~ntSl"r~ It""", Tcn'P<'ratur<! for ('hemlcal. !{"''''' G m'_"'cr",'"1I131>(>1>.,t Room. (^) t~contaimllil nv,lh ""n~ lt1ochonery (>1 Ih~ I"OOn. ro, (^) o.)'h~aling and II (;n ... hmc Room I Sto"" k, -,,,,. for &ltl n .I. S, ....... 1I:'~>rn f{>l" lro" War<! ),: E\e,""'" M (,.M Room I. Aor In,a;:... R I'",,,,hl Ele,''''''''

DEPART:-'IENT OF CH Ei\ ![ ST RY

by means of a freight elevator. Th ere are sixteen private laborat ories for professors and instructors. Th c laboratory of the Agricultural Ex periment Station is also si tuated in 1'lorse Hall. Di st iH ed wate r is conducted in block tin pipes to a ll of th e more important rooms on each floo r from tin-lined tanks in the upper story. Air blast is conducted wherever required from a high pressure blower in the basement. T he buildings are supplied with an alternating curre nt of 2200 volts and with two direct current s of 500 and 110 volts. Lighter currents for electrochemical analysis and synt.hesis are furni shed by storage batteries. Wi t.h t.he aid of a mot.or generator, low voltage direct currents up to 20 00 amperes may be obtaine d. The buildings arc light ed with gas and elect ri ci ty, heated by steam, and thoroughly ventilated by forced draft. All working tables are provided with gas and water and most of them with bla st and with suction pumps. The i\ i uscum contains collections for the illustration of leet.ures upon inorgani c, organic. &1.niw. ry. and applied chemistry. These coll ections include speeimcns of thc elcments, T he th eir compounds. and the orcs from which they Museum afC obtained. a complete collection of the most im portant organic ('Ol11po uncis, and also spec i- mens illustrat ing t.he leading chemical indu st ries, such as the manu- facture of the 'arious acids. alkalies and salts. pigments, glass, pottery. soap, stcarine and glycerine. and the chcmica! proccssc$ of metall urgy, bleaching, dyell1g. and photog-raphy. Th e D epartment Library , which is centrally located in i\ lorse Ha ll, contains eompl ctc sets of all of ll1(' morc impor tant journals

Th, D epartment Library

and is nf~ ' fully supplied with works of referencc ned with the standard boob on chemistry and allicd subjects. Such additions arc made to it from year to year as an: necessary to keep abfeast of the times. It is accessible to all students. under such restrictions only as arc necessary to sec ur c it agninst. inj\lry Of loss. The clements of inorganic chemistry arc tau ght. by lectures, laboratory work, and recitations from a textbook. The lectures deal with the funda-

Introdu cto ry Inorganic Chemistry mental theories and laws of chemistry, and with the more comn~on clements and their compounds. Th ey are pro-

fuscly illustrated by experiments. Tn so far as is found practicable

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CO LLE GE OF ART S .';'\ 0 SC I ENC ES

M or se Ha ll--Plan of Seco nd Floor A R<'~i tM; "" Roon. C Il Rec itat ion Room D C L., borMorr of ,\ ,I"ano .. 1 Ga, Anal ni. o l.a boralOT Y of U as AnalySIs E nas S\ora~e Room F Combu'h{ln R ""m (;H BulliUalance Room on "',sa)" La .H)mtor)" I Stock Room :\0. I 'kJ^ Men"La boratory^ s La'""t of A<lvaneed 01);3";.^ ",y Chem ist,)" L I'rc"ar~tioll Room ~! Oftice (,f [n s,ruete" in Qualitati, 'c An a l)'s" :-; Pri vate l.abo rat ory o Ofll'X '" pr ol • ..." ,,/ OT!(anic ("he mi s try J> Balan ce Room OR Olfoe<: 01 I n5lmct~r In Org a nic Chem ;'Ir), Frc ll( ht E I., 'ator

DEPART~II~ NT OF CHE~IIST RY (^) '

in an i ntroductory course reference is n~ade to important recent adyances in the science. and in its indu!;trial applications. The laboratory work is designed not only to familiarize the st udent wi th the principles and facts of chcmist ry. but also to atTor d a thorough preliminary {mining in the con st rtlction and manipu- lation of laboratory apparatus. Studcnts who ha"e had a thorough high school CQurse in chemistry arc penllitt cd to substitute a series of suppleme ntary e X]lClimel1t s for cer tain parts of the re1-,'1.llar labora- tory work. This s upplementary course CQmprises instruction and practice in the principlc:-; of simple glass blowing. together with a large number of quantitative chemical expcriment:-;, The recitations deal with the subject ma t tc r of the lectures and with the (' x1 lC rim ent :d work carried on in the IaboratOl'Y. Th ey also comprise thorough (lii ll in the soh'ing of chemical probleJl1s. Three courses of lectures in ad'anced inorganic chemistry arc offered. One of these courses. extending throughout the year,

Advanced Inorganic Chem istry

comprises a general sun 'ey of the field and deals wi th the chemistry of both the r:1re and the ('0111 - ll~on elell'.ents. 1\ second course covers selec ted topics in ach'anccd inorganic chemis try. while a third, e xte nding throughout one term, is co n- cerned with th c chemistry of gases. Advanccd b bo ratory work in inorganic chemistry is oITered both for st udent s that desire to acquaint thel11sel"es with the prep- aration and purification of in organic compounds and with the extraction of the rar e clements from orcs :1nd minerals, and fo r those who desire to pursue im'estigation in this branch of chem ical science. The equi pment for rese arch is very complete. [lnd excel- lent faci lities are a"ailable fo r inn'st igation in any branch of the field that the graduate st ud ent may desire to take up under the direction of the professors in charge. Tw o bq.:lnning courses arc gi,'en in chemieal ana lysis. Th c-:;e ':1ry in scope ;'l1ld length. and Quantitative ar^ e^ designed^ to^ meet^ the^ different^ needs^ of^ the st udent s of ch emist ry and enginee ring:.

Qualitative ,,' Analys is Qualitative analysis begins with the st udy of the reactions of the clements and their compounds with dilTerent rcagcnts. T hi s is followcd by the pract ical applicat ion of the knowledge thus gained to the analysis of unknown s ub stances both in the solid form .1.nd in solution. _-\ n advanttd course in quaE-

COLLE GE OF ..\RTS AND SC IE NC ES

Morse Ha ll --Pla n of Third Fl oo r A Private 1.aboratory IlC Offi"" ofAgT icuhural Profe...,r E .periment of Agricultural Ch.emistry Station

T_ l?^ Pri"aleOffice of^ 1.aborator)· Profe..." 01 Inorganic Chemist,y

F l.... bor "tory for R .se,,«h in ] norllanic Chemistry G OtT,,,,, of ,\ .. i'lant Professo, of Gas Anal)·.i. and Oplioo- ch.emica! M e\hoos H Lal.oorator)' for Research in A~ricul",ral Chemistry I l..aboralo,y of Ad,'an"",l AKricuitural Chemist,), J Preparation Room K Dark Room k! ~~'l;."n"c7il.'= Room N Swck R oom 1\ 0. 2 oP WOIncn', Cloa k RoomOffice of Head of Departmrnt

1. Department Office Freillht Elevator ST Depanrn"ntD"p:t.rlrnent (^) L,br.~ryReadlll~ Room U Offi"" 01 A.. istanl l'rofcssor of An al),lical Chern i.,,), V Laborntor)' of Ri ce".... ,, "" !)'. ,.

DEPARTi\IE NT OF CH Ei\II ST RY (^) '

tative analysis is offered for those who may desire to reccive further instruction or to carry Out research work in this field. The work in quantitative analysis comprises gravimetric and vulumetric determinations together with thc study of the chemistry of the operations involno:d. Th e work in the laboratory is s up· plementcd by lectures and recitations. the latter including practice in writing chemical equations e xplanat ory of the actual operation of analytical work. For st ud e nts intending to devote themselves chie fl y to the st udy of chemi st ry an advanced course is provided in quantitative analysis,

Advanced Quantitative Analysis

especially designed to give as wide an acquaintance as po~iblc with analytical manipulation_ This course comprises t.he detennination of t he more important clements: the analysis of orcs. minerals, «nd alloys: the ultimate analysis of organic s ub· stances; the ana lysis of iron and steel. slags, paints and varnishes, coal and coke, and a number of o the r commereial products. A course of le ct ures upon selected topics in advanccd quantiwtive analysis, and a laboratory course in electrochemical analysis are also offered. The instruction in assaying consists of lectures and laboratory practice. The lectures comprise a compkte and detail ed discussion

Assaying

of the thcory and pra ctice of the scorifi cat ion, crucible, and^ wet^ assa y.^ In^ t.he^ laboratory^ the student is given in st ruction in the scorification and crucible assay of silver and gold ores. mattes and bullion. and also in the wet assay of bullion and of the orcs of copper. lead. and zinc. T he work in opticochemical methods consists of lectures and laboratory practice. The lectures are devoted to a dcta.iled dis-

Optico- chemical M ethods

cussion of the methods of optical analysis. especial attention being given to those methods involving the use of the spectroscope. colorimeter, polmiscope, and refractometer. The laboratory work is inte nd ed to supplement the subject matter of the lectures and consists of practice in the manipulation of the above instruments in actual analyses. The spectroscopic laboratory is designed especially for optical work and the equipment includes t he latest and most improved types of optical apparatus and accessories. Special oppor. tunities arc afforded fo r advanced work and research.

' 6 C^ OLLEGE^ OF^ f\RT^ S^ A:--.lO^ sc^ mi'CE^ S

M orse Hall- -Plan of F ourth Floor A R<'C;'3tion Roo,,, A II R"",ta\u'n Room U C Women's 1.""300,)" D Men's L""at01"Y E f' (^) Oft,,,,,I',;,'ale of l.aboralO')' Prokw>r of Inorganic Chemistry

1

~ 3~~~ ~fA~i$tant Profcssor of Ph),s;eal Chemistry and EI"",wcl"",istr), 1.I^ Offit~lIalance of Professor of Ph)",i^ Roo",^ .a! Chem ... ")' J.;L PrivateI'r;"",e L"La l>o<atory OO,alQt)' M O'lice of !n .lruc,01" in int muc\or)" I norganic (hemi,,,)' N S'o... k Room ;\0. 1

oP BalPrepara!;"" an"" Room R oo",

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D EP,\RT.!E:\T OF' CHE.\IlSTRY (^) '

Lecture co ur ses and laboratory courses ar e gl'en in gas analysis and the subject taken up both from a scientific and from a technical standpoint, Within certain limits the regularly Gas outlined laboratory courses may be modified to Analy s is meet the needs of the indi'idunl st udent. The laborntories devoted e xC\u siw ly to the analysis of g- ases arc provided with a Iarg-e collection of the standard forms of gas appnratus and special apparatus, and afford exceptional opportunities for advn ll ccd work and research. An elementary course dealing- with microchemicnl methods and planned t o meet the needs of students specializ- Chemical ing- in chemistry selTes as an introduction to more Mic ros copy ad'anced courses in inorganic and organic qua li ta- tive micro-analysis and the microscopy of foods and water. The course in microchcmical methods ckals with the applica- tion of the microscope and its accessories to the solution of problems arising in chemical practice. The laboratory for microchemical analysis includes a grinding- room for the prcparation of material for mctallographic stu dy. and besides student microscopes, is equipped with crystallograp ll ic, photog-raphic, and projection microscopes and with a compkte ultram icroscope outfit for the study of solids and liquids. Two element:lry courses :lre g-l'en in organic chemistry, one extending throughout the year. the ot her throughout the first half-

Organic Chemisny

year. Th e shorter co ur :>c is intended for and required of st ud ents in medicine and IS spec~ ially adapted to their needs. It mny also be taken by other students who haye had cour:>cs in in- organic chemistry and qualitatiye and quantitative ana lysis. The longcr course is for students specializing in chemistry or for those who \"ish a more extended knowledge of the subjcct. Th e method of instruction is the So.1.111e in both courses and consists of lectures, wri tten reviews, and lab oratory work. The le<:tures arc fully illustrated by experiments. by specimcns of the compounds con- sidered. and by eh:\rts. Students arc required to take careful notes on thesc lectures, and written 1'C'i("ws 011 the lect ur cs and laborntory work arc )..,";,cn C'cry week. The laboratory work follows the lcctures closely and comprises the preparat ion and purification of a large number of typical orgnnic compounds and

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COLLEGE OF ARTS AND SC IE NCES

"LABORATORY Of MICROC HEMISTRY

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H RE:,sE:f\RCH Lf\BORIITORY

Sf\N ITf\RY CHEMISTRY

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Morse Hall- - Plan of Fifth Floo r A P rinte La.>ontor)· !J Office of P rofessor 01 ,bn;IU)" ('h<mistry C Grinding R oom D 00,,,,, 0/ In otmctor In S.,nilarr Chemistry EF SlcTih.in~Ba13nc ~ It""", Room {;H Ih, eubator Ito,,,,, H ncubator Room"

[)EP:\RT~ I Ei:T UF CH E:'>IISTRY (^) ' 9

the detailed study of their properties, reactions, and relations. The detection of different dements in organic com lxlUnds, and the recognition of various groups or radical:; i:; also included in the laboratory work. The second year's work in organic chemistry consists of lectures on special chapters of the subjcct and of ad- "anced laboratory work in the preparation and study of the more complicated compounds of carbon. Special courses of lectures are also !,';ven on thc coal tar dyes and on the stereochemistry of the compounds of ca rbon and nitTogen. In all the ad'anced works constant reference is made to the original literature of the subject in the 'arious chemical journals SO as to familiarize the students with the classical invest.ig:ations of the science. A course on t.he methods of organ ic analysis is also ginm 111 which the qualitative and quantitative analysis of commercia l products and of mixtures of organic substances is taken tip. An outline of the more important features of the physical aspect. of chemical change is 0'en in an i ntroductory course of lectures

Physical Chemistry

in physica l chemistry. This coursc aims to t,';'e a systematic presentation of modern chemical theory :lnd to scrn: as an introduction t.O the othe r courses in physical chemistry. .\ 11 adnl1lced course of lectures is offcred in which especial attcntion is paid to the Gibb- sian phase rule and to a non-ma thematical eXl)Osition of the mass Jaw with its app li cation to chemical equilibrium and n'action ,·clocity. This course aims to cover the work that has not ~'et appeared in the textbooks and to b';ve a critical S\ll"'CY of the field of physical chemis- try in general. The first laboratory course covers the more import- ant subdi'isions of the subject with a series of experiments that aim to illustratc t.he fundamenta l principles of the science. In the advanced laboratory courses the student may elect work on the mass law. reaction velocity. high temperature measurements, the study of alloys, or the applicat.ion of physical clll'mical metho ds to organic chemistry. Opportllnity is offered for investigation in the field of metallography and photography. In electrochemistry a COllrsC of leCtures is gi'en in which em - phasis is laid on t.he industrial aspects o( the subject. Electro- thermal processes. inorganic and org;;l1lic synthesis Ele ctro· by t he electric current, electrochemical analysis che mi s try and storage batteries are considered 111 this course. I n an ad'ancecl co urse the theory of the voltaic

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IJEP/\RT:--JEr-.:T OF CHEl"IlISTRY "

cell. the calculation and measurement of electromotive force, and electrochemical theories are considered m detail. L"aboratory instruction in electrochemistry includes the preparation of com - pounds by electrochemical and electrothennal methods and a study of storage batteries. The laboratories devoted to sanitary chemistry ~l1lcl tox.icology

Sanitary Chemistry

Toxicology^ '"'

arc exceptionally well equipped with the most mod('rn apparatus both chemical and optical. and afford facilities for the microscopical study of preparations and materials obtained 111 the labor atory courses in food analysis. Provision is made also fo r research in food analysis, water analysis, water puri- fication, and chemical btlCteriology. A large collection of pure and adulterated food products suppl ies materials for those desiring to specialize in board-of-health work or in domestic economy. The equipment for the study of toxicology is such as to pe r- mit of the detection and determination of the r3rer as well as the common poisons of both organic and inorganic origlll. An elcmentary course consisting of lectures, laboratory prnctice. and rccitations, dcals with the fertility of the soil, the relations of soils to pl ant ~owth. :\nd the composition of AgriculturalChemistry plants and fertilizers. I II the laboratory arc studied the chemical and physical propertie~ of soils and fertilizers. A series of elementary lectures is given for the winter course students. Two advanced courses arc offered, one on dairy chemistry and one on the chemistry of plant and animal life. A laboratory course in t.he chemical analysis of agricultural products extends throughout the year. Special attention is gi'cn to t.he methods of ana lysis recommended by the Association of Official Agricultural Chemists. rA seminary, attended by the members of the senior class who are candidates for the degree of Bachelor of Chemistry, meets at

Seminary

intervals throughout t.he year. l\lembers of the semi nary report upon recent advances and upon selected topics in chemical scien ce. The department possesses unusual facilities for the prosecu-

Resean:h

tion of experimental research in the different branches of chemicnl science. and every encouragement is affordcd for work of this nature.

DEP:\RT:'IIENT or C HI~l\II S TRY (^) '3

There arc awarded annually to properl y qualified graduate students in the D epanment of Chemistry a Fellowship and a Gradu- ate Scholarship, detailed information concernin g- which may be found in the Announcement of the Graduate Schoo l. Fellowship nd Graduate Scholarship in Chemistry

For the information of tho$8 who may plan to apply for appointmellL to either the Fellowship or the Gradua te Scholarship it may here be state d that it is the present poli cy of the D epa r tmen t to nomina te to the Fellowship only stich cand id ates as ma y be expected to complete the requiremcnts for the degree of Doctor of Philosophy within one year, and to t he Gradu ate Scholarship only such ca nd id ates as may be eXl)Ccted to complete these requirem ents within two years. The George Chapman Caldwell prize of fifty dollars has been established by Grace Caldwell Chamberlain and Fran cis Cary

George Chapman Caldwell Prize

Caldwell as a memorial to their father, George Chapman Caldwcll, who was a professor in the D epartme nt of Chemistry from 1867 to [902, a nd H ead of the D epa rtm en t until 1902. This prize. accompanied by a certificate or^ parchment,^ is annually awarded by the Staff of the D epartment of Chemi str y to a member of the^ senior class in recognition of general exce^ ll^ ence in chemical work.