PROCEEDINGS 



ROYAL PHYSICAL SOOISTl 



PROMOTION OF ZOOLOGY AND OTHER BRANCHES OF 

 NATURAL HISTORY. 



SESSION 1905-1906. 



No. 5. Vol. XVI. Pages. 191-230. 



CONTENTS. 



PAGE 



The Embryology of certain of the Lower Fishes, and its Bearing uj)on 



Vertebrate Morphology. By J. Graham Kerk, . . . .191 



The Bdelloid Rotifera of the Forth Area. By James Murray. [Plate 



VIL], 215 



The Higher Crustacea of the Scottish Carboniferous Rocks (Abstract). 



By B. X. Peach, Esq., LL.D., F.R S., 230 



EDINBLTRGH: M'FARLANE k ERSKINE. 



March 1906. 



