PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 89. No. B 618. 



BIOLOGICAL SCIENCES. 



\ oAM 22 1317 

 CONTENTS. Vo^, 



Page 



Man's Mechanical Efficiency in Work Performance and the Cost of the 

 Movements Involved (Treated Separately). By J. S. MACDONALD, 

 Professor of Physiology, Liverpool ....... 394 



The Typical Form of the Cochlea and its Variations. By HENRY J. WATT. 410 



Obituary Notices :— Edward Alfred Minchin, F.R.S. ; Captain J. W. 



Jenkinson . . . . . . . . xxxviii — xliii 



printed for THE ROYAL SOCIETY and sold by 



HARRISON & SONS. 45. ST. MARTIN'S LANE, LONDON. W.C. 



Price Tzvo Shillings. 



No. B 618. 



January 1, 1917. 



