vi CONTENTS. 



PART II. (1915-16.) 



NUMBER PAQK 



VTT. Studies on the Development of the Horse. I. The Development during 

 the Third Week. By J. Cossar Ewart, F.R.S., Regius Professor of 

 Natural History. University of Edinburgh. (Plates IX-XVIII and 

 Twenty-one Text-figures), ...... 287 



VITT. Description of a- Reconstruction Model of a Horse Embryo Twenty-One 

 Days Old. By Professors Arthur Robinson, M.D., and A. Gibson, 

 M.B.,F.R.C.S. (Plate XIX, figs. 54-63. Text-figs. 22-26), . . 331 



IX. A Contribution to the Study of the Scottish Skull. By Matthew Young, 

 M.D., Senior Demonstrator in Anatomy, University of Glasgow. 

 (With Three Plates), . . . . . . 347 



X. Skiagrapliic Researches in Teratology. By Harry Rainy, M.D., 

 F.R.C.P.E., and J. W. Ballantyne, M.D., F.R.C.P.E. (With Fifteen 

 Plates), ......... 455 



XI. On a Small Collection of Terrestrial Isopoda from Spain, with Descrip- 

 tions of Four New Sjwcies. By Walter E. Collinge, M.Sc., F.L.S., 

 etc., Research Fellow of the University of St Andrews. (With Two 

 Plates), ......... 461 



XII. The Lateral Sense Organs of Elasmobranchs : The Ampullary Canals 

 of the Genus Raia. By Augusta Lamont, B.Sc, Baxter Scholar in 

 Natural Science, University of Edinburgh. (With Eight Plates and 

 Nine Text-figures), ....... 467 



PART III. (1915-16-17.) 



XIII. Contributions to the Geology of Benguella. By Professor J. W. Gregory, 



F.R.S., D.Sc. (With Two Plates), 495 



XIV. A Contribution to the Petrography of Benguella, based on a Rock 



Collection made by Professor J. W. Gregory. By G. W. Tyrrell, 

 A.II.C.Sc., F.G.S., Lecturer in Geology, Glasgow University. (With 

 One Plate), . . . . . . . .537 



