Price HALF-A-UHOWN. 

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



VOL. III. 



No. 17. 



ctcncc 



E repress 



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. 



JULY, 1895. 



CONTENTS. 



THE PATHOLOGICAL RESULTS OF THE ROYAL COMMISSION ON TUBER- 

 CULOSIS. By SIDNEY MARTIN, M.D 



PITHECANTHROPUS ERECTUS — A BRIEF REVIEW OF HUMAN FOSSIL 

 REMAINS. By ARTHUR KEITH 



THE GEOLOGY OF THE SAHARA. By PHILIP LAKE, M.A., St. John's College, 

 i Cambridge 



RECENT VALUES OF THE MAGNETIC ELEMENTS AT THE PRINCIPAL 

 MAGNETIC OBSERVATORIES OF THE WORLD. By CHARLES CHREE, M.A., 

 Superintendent of the Kew Observatory 



A TYPE OF PAL/EOZOIC PLANTS. By A. C. SEWARD, M.A., Lecturer on Botany 

 in the University of Cambridge 



THE FORMATION OF LYMPH. By W. D. HALLIBURTON, M.D., F.R.S., Professor 

 of Physiology in King's College, London 



APPENDIX * 



CHEMICAL LITERATURE FOR MAY, 1895 xxxvn 



335 

 348 

 37° 



39o 



394 

 409 



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



NEW YORK: THE INTERNATIONAL NEWS CO. 

 BOSTON AND CHICAGO : 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: J AND GOTCH. 



SOUTH AFRICA: Messrs. JUTA, CAPE TOWN. 

 LEIPSIG: Mr. F. A. BROCKHAUS. 



[All Rights Reserved. 



