Price HALF-A-CROWN. 

 Subscription Price, TWENTY-FIVE SHILLINGS per Annum, Post Free. 



VOL. IV. 



No. 19. 



Science 



progress 



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. 

 . ;.. UUNSTAN, 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, C.B., F.R.S., Dean of The 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. 



SEPTEMBER, 1895. 



CONTENTS. 



PAGE 



PROGRESS IN THE STUDY OF THE ANCIENT SEDIMENTS. By J. E. MARR 

 F.R.S., Fellow of St. John's College, Cambridge ... 



ON THE RESPIRATORY FUNCTION OF STOMATA. By F. FROST BLACKMAN 



M. A., Demonstrator of Botany in the University of Cambridge 



THE ZOOLOGICAL POSITION OF THE TRILOBITES. By H. M. BERNARD, M.A 



Cantab., F.L.S., F.Z.S 



SOME METASOMATIC CHANGES IN LIMESTONES. By ALFRED HARKER, M.A. 



Fellow of St. John's College, Cambridge ... ... ... ... •■• ..*. 



THE DECOMPOSITION PRODUCTS OF PROTEIDS. By T. GREGOK BRODIE 



M.D., Lecturer on Physiology, St. Thomas's Hospital 



APPENDICES: 



I. NOTICES OF BOOKS 



II. CHEMICAL LITERATURE FOR JULY, 1895 



i3 



33 



50 



62 



1 

 11 



feonbon : 

 THE SCIENTIFIC PRESS, LIMITED, 428 Strand, W.C. 



NEW YORK, BOSTON AND CHICAGO (Special American 



Edition) : Messrs. D. C. HEATH & CO. 

 DUBLIN : Messrs. FANNIN & CO., 41 GRAFTON ST. 

 EDINBURGH AND GLASGOW: Messrs. JOHN 



MENZIES & CO. 

 TORONTO: THE TORONTO NEWS CO. 

 MONTREAL: THE MONTREAL NEWS CO. 



PRICE HALF-A-CROWN.] 



BERLIN: Messrs. A. ASHER & CO. 

 PARIS: LIBRAIRIE GALIGNANI, 224 RUE RIVOLI. 

 INDIA: Messrs. THACKER AND CO. 

 MELBOURNE, SYDNEY, ) Messrs. GORDON 



ADELAIDE, NEW ZEALAND:) AND GOTCH. 



SOUTH AFRICA: Messrs JUTA, CAPE TOWN. 

 LEIPSIG: Mr. F. A. BROCKHAUS. 



[All Rights Reserved. 



