J. & A. CHURCHILL'S 



REAGENTS AND REACTIONS. 



By Professor Dr. EDGARDO TOGNOLI, Royal University of Modena, 

 Italy. Translated from the Italian, with additions, by C. AINS- 

 WORTH MITCHELL, F.I.C. 236 pp. Fcap. 8vo. 75. 6d. net. 



(Postage 3 d.) (1918) 



An accurate summary of all the more important reagents and reactions which 

 are in constant use in laboratory practice, either for purely analytical 

 research or for various applications in the cromatological, toxicological and 

 clinical field. 



INDUSTRIAL ORGANIC ANALYSIS. 



For the use of Technical and Analytical Chemists and 

 Students. 



By PAULS. ARUP, B.Sc., A.C.G.I. Second Edition. With 25 Illus- 

 trations. 484 pp. Cro wn 8 vo, i2s.6d.net. (Postage gd.) (1920) 



ELEMENTARY PRACTICAL METAL- 

 LURGY, for Technical Students and Others. 

 By J. H. STANSBIE, B.Sc. (Lond.), F.I.C., Associate of Birming- 

 ham University and Lecturer on Metallurgy in Birmingham 

 Municipal Technical School. With 25 Illustrations. 160 pp. 

 Crown 8vo, 55. net. (Postage 4d.) ( I 9 I 5) 



THE ANALYST'S LABORATORY 



COMPANION : a Collection of Tables and Data for 

 Chemists and Students, together with numerous ex- 

 amples of Chemical Calculations and concise Descrip- 

 tions of several Analytical Processes. 



By ALFRED E. JOHNSON, B.Sc. (Lond.), F.I.C., Assoc.R.C.Sc.I. 



Fifth Edition. 186 pp. Crown 8vo, IDS. 6d. net. (Postage 4d.) 



(1920) 



MICROBIOLOGY: A TEXT-BOOK OF 



MICROORGANISMS, GENERAL AND APPLIED. 



Edited by CHARLES E. MARSHALL, Professor of Microbiology, 

 Massachusetts Agricultural College. Third Edition. With 200 

 Illustrations. 1,072 pp. 8vo, 2is. net. (Postage is.) (1921) 



RESEARCHES ON THE AFFINITIES 



OF THE ELEMENTS. 



By GEOFFREY MARTIN, B.Sc. With Illustrations, Tables and 

 Appendices. 300 pp. 8vo, i6s. net. (Postage gd.) ( I 95) 



J. & A. CHURCHILL 

 10 



