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VOL. III. 



Science 



No. 16. 



A MONTHLY REVIEW OF CURRENT SCIENTIFIC INVESTIGATION. 



Conducted by HENRY C. BURDETT. 



Edited by J. BRETLAND FARMER, M.A. 



WITH THE CO-OPERATION OF THE FOLLOWING EDITORIAL COMMITTEE:— 



H. E. ARMSTRONG, F.R.S., Professor of Chemistry at the City and Guilds of London Institute for Technical 

 Education. 



W. R. DUNSTAN, F.R.S., Professor of Chemistry, St. Thomas' Hospital and Pharmaceutical Society, 

 London. 



G. F. FITZGERALD, F.R.S., Professor of Natural and Experimental Philosophy in the University of Dublin. 

 C. S. SHERRINGTON, F.R.S., St. Thomas' Hospital, London. 

 J. W. JUDD, F. R.S., Professor of Geology, Royal College of Science, London. 

 W. J. SOLLAS, F.R.S., Professor of Geology in the University of Dublin. 

 G. B. HOWES, F.Z.S., Professor of Zoology, Royal College of Science, London. 



H. MARSHALL WARD, F.R.S., Professor of Botany, Royal Indian Engineering College, Cooper's Hill, 

 Staines. 



JUNE, 1895. 



CONTENTS. . 



PAGE 



NEW ASPECTS OF AN OLD AGRICULTURAL QUESTION. By H. MARSHALL 



WARD, M.A., F.R.S., Professor of Botany in the Royal Indian Engineering College 



Cooper's Hill 

 THE RATIO OF THE SPECIFIC HEATS OF GASES. By J. W. CAPSTICK, M.A. 



Fellow of Trinity College, Cambridge 

 PROGRESS IN PHYSICAL CHEMISTRY DURING 1894 (Part II.). By J. W 



RODGER, A.R.C.S 



ON THE PROTOPLASTID BODY AND THE METAPLASTID CELL. By J. E. S 



MOORE, A.R.C.S 



APPENDICES: 



I. NOTICES OF BOOKS 



II. CHEMICAL LITERATURE FOR APRIL, 1895 



251 

 272 

 290 

 323 



XXVII 

 XXX 



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