PROCEEDINGS 



OF THE 



ROYAL PHYSICAL SOCIETY 



PROMOTION OF ZOOLOGY AND OTHER RRANCHES OF 

 NATURAL HISTORY. 



SESSION 1909-1910. 



No. 2. 



VOL. XVIII. 



Pages 73-143. 



CONTENTS 



6AI 



VIII. "On some Habits and Hosts of Bird Ceratophylli taken in Scotland in 

 1909 ; with description of a new species (C. rothschildi), and records 

 of various Siphonaptera." By James Waterston, B.D., B.Sc, . 73 



IX. Note on Fiona camea C. L. Koch and Eurycypris pubera (O.F.M.). 



By William Williamson, ., . . . . .92 



X. Note on a Peculiar Clutch of Blackbird's Eggs and some other 



Abnormalities. By Professor J. Arthur Thomson, M.A., . 95 



XI. Note on Eunephthya glomerata, Verrill, from the Fseroe Channel. 



By Professor J. Arthur Thomson, M.A., . . . .98 



XII. Note on "Leptus phalangii" and "Leptus autumnalis," and their 



parent Earth-mites. By William Evans, F.R.S.E., . . 100. 



^QII. Note on the Posterior Vena Cava in Polypterus. By J. Graham 



Kerr, . . . . . .102 



i IV. Notes on Prof. E. A. Minchin's Preparations of the Early Stages in 

 the Development of Sepia. By J. H. Koeppern, Glasgow 

 University. [Plates I. to X.], . . . .105 



r . The Oligochseta (Earthworms and their Allies) of the Forth Area. 

 By William Evans, F.R.S.E., . . 



109 



XVI. Variation in Aurelia aurita. By D. C. M'Intosh, M.A.,.B.Sc., 

 F.KS.E. (From the Zoological Department, University' of 

 Edinburgh), . . . . . .125 



EDINBURGH: M'FARLANE & ERSKINE, 

 July 1910. 



