CONTENTS. 



Chapters in Spectrtm Analysis. I ^continued). 



By W. Marshall Wattx. D.Sc. 65 



Male Birds with Female Plumage. 



The Zoological Society. 



Flora Selborniensis 



The History oe the Scottish Shale Oil Indl'stry 



By S. C. Bradford B.Sc 



Mars: A Critical Study or the Facts. 



By J. R. Maxwell. F.h'.A.S. 



Notes. — 



Astronomy. 



By A. C. D. CrommeUn, B.A.. D.Sc, F.R.A.S. 



Botany. By Professor F. Cavers. D.Sc, F.L.S. 

 Chemistry. 



By C. Ainswortli Mitchell, B.A., F.l.C. 



Geography By A. Scott, M.A., B.Sc. 



69 

 69 

 59 



70 



78 

 HI 



81 



Notes icoiitlniied) : — 



Geology. By G. \V. Tyrrell, A.R.C.Sc, F.C.S. S2 



Meteorology. By William Marriott. F.R. Met. Soc S3 



Microscopy. ... By J. E. Barnard. F.R.M.S. 83 



Photography. ... ... ... By Edgar Senior. 84 



Physics. By J. H. Vincent, M.A., D.Sc, A.R.C.Sc. 87 



Radio-Activity. By Alexander Fleck. B.Sc. 88 



Zoology. 



By Professor ,/. Arthur Thomson, M.A., LL.D. 88 



Solar Disturbances during January, 1915. 



By Frank C. Dennett. 89 



The Face oe the Sky for April. 



By A. C. D. Crommelin. B.A.. D.Sc. F.R.A.S. 90 



Reviews. ... ... ... ... ... ... ... 91 



Notices 96 



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What is Adaptation P 



By R. E. LLOYD, M.B., D.Sc. (Lond.l, 



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Ill this biwk. ivhich is a sequel to the author's " The Gyotrth of 

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He points out that llie so-called problem of adaptation ariies 

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Original Articles: Pre-Bantu Occupants of East Africa. — Music: Tones 

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