- J. & A. CHURCHILL'S - 



TEXTBOOKS OF 

 CHEMICAL RESEARCH AND ENGINEERING. 



Edited by W. P. DREAPER, O.B.E., F.I.C. 



CATALYSIS 6? ITS INDUSTRIAL APPLICATIONS. 



By E. JOBLING, M.C., A.R.C. Sc., B.Sc., A.I.C. Second Edition. 

 With 12 Illustrations. Crown 8vo. 152 pp., 75. 6d. net. 



(Postage 4d.) (1920) 



SURFACE TENSION AND SURFACE ENERGY, 

 AND THEIR INFLUENCE ON CHEMICAL 

 PHENOMENA. 



By R. S. WILLOWS, M.A., D.Sc., and E. HATSCHEK. Second 

 Edition. With 21 Illustrations. Crown 8vo. 124 pp., 55. net. 



(Postage 3d.) (1919) 



MOLECULAR PHYSICS. 



By J. A. CROWTHER, M.A., late Fellow of St. John's College, Cam- 

 bridge. Demonstrator in Physics at the Cavendish Laboratory. 

 Second Edition. With 29 Illustrations, Crown 8vo. 198 pp., 

 ys. 6d. net. (Postage 6d.) (1919) 



CHEMICAL ENGINEERING. 



Notes on Grinding, Sifting, Separating and Transporting 

 Solids. 



By J. W. HINCHLEY, A.R.S.M., WH. Sc., Lecturer on Chemical 

 Engineering, Imperial College of Science, London. With 70 

 Illustrations, 112 pp. Crown 8vo, 35. 6d. net. '(Postage 3d.) (1914) 



NOTES ON CHEMICAL RESEARCH. 



An account of certain conditions which apply to Original 

 Investigation. 



By W. P. DREAPER, O.B.E., F.I.C. With a frontispiece of 

 Michael Faraday. Second Edition. 212 pp., Crown 8vo, 75. 6d. 

 net. (Postage 4d.) (1920) 



AN INTRODUCTION TO THE PHYSICS AND 

 CHEMISTRY OF COLLOIDS. 



By EMIL HATSCHEK. Third Edition. With 17 Illustrations. 

 126 pp. Crown 8vo, 55. net. (Postage 3d.) (1919) 



CATALYTIC H YD ROGEN ATI ON AND 

 REDUCTION. 



By E. B. MAXTED, PH.D., B.Sc., F.C.S. With 12 Illustrations. 

 112 pp. Crown 8vo., 55. net. (Postage 3d.) See also p. 5. 



J. & A. CHURCHILL 

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