No. 53.] 1916 [May. 



The Scottish Naturahst 



A Monthly Magazine devoted to Zoology 



With which is incorporated 



"The Annals of Scottish Natural History" 



EDITED BY 



WILLIAM EAGLE CLARKE, F.R.S.E., Etc. 



Keeper, Natural History Department, Roval Scottish Museum 



WILLIAM EVANS, F.R.S.E., Etc. 



Member of the British Ornithologists^ Union 



PERCY H. GR I MS HAW, F.R.S.E., F.E.S. 



Assistant- Keeper, Natural History Department, Royal Scottish Museum 



ASSISTED BY 



J. A. HARVIE-BROWN, LL.D., F.R.S.E. I H. S. GLADSTONE, M.A., F.R.S.E., F.Z.S. 



EVELYN V BAXTER, H.M.B.O.U. JAMES RITCHIE, M.A., D Sc. 



LEONORA J. RINTOUL. H.M.B.O.U >i A. LANDSBOROIIGH THOMSON. M.A., M.B.O.U. 



EDINBURGH : OLIVER & BOYD, Tweeddale Court 

 LONDON : GURNEY & JACKSON, Zo Paternoster Row 



Price gd. Annual Subscription, payable in advance, 6i. bd. post free 



