The Annual Subscription for 1920 is 15/-. 



[See p. 2 of Wrapper. 



Third Series. No. 65.] ^.y ,000 

 [No. 672.] ' -^^ ^• 



[Price 2/- net. 



THE 



riM 



MOKTHLY MAGAZP" 



EDITED BY 



G. C. CHAMPION, F.Z.S. J. E. COLLIN, T.E.S. 



W. W. FOWLER, D.Sc, M.A., F.L.S. 



E. W. LLOTD, F.E.S. G. T. POERITT, F.L.S. 



J. J. WALKER, M A., R.N., F.L.S. 



VOLUME LVI. 



[THIRE) SERIES-VOL. VI.] 



♦'J'engage done tous k eviter dans leurseoritstoutepersonnalite, 

 toute allusion depassant les limites de la diaoussion la plua sincere et la 

 plus courtoise." — Laboulhene. 



LONDON : 



GtJRNEY & JACKSON (Me. Van Voorst's Successors), 



33, PATERNOSTER ROW, E.C. 4. 



TATLOK AND FKANCIB, RED LION COURT, FLEET STREET. 



