VOL. XIV., No. 84. 



MAR 11 1899 



FEBRUARY 1899. 



NATURAL 



ilfu 



SCIENCE 



A MONTHLY REVIEW OF 



SCIENTIFIC PROGRESS 



CONTENTS 



Notes and Comments ....... 



Distribution and Morphology — Irrelevant Generalities — The Chinch Bug — 

 Formation of a Human Race — Do Salmon feed in Fresh Water? — The 

 Mackerel and its Variations — The Plymouth Laboratory — Colours of 

 Cowries — The Fishes of Lake Tanganyika — Zoological Notes from Japan — ■ 

 Nucleus and Cytoplasm — The Natural History of the Congo — The Evolution 

 of Immunity — Photographic Process Colour Printing — A Noble Gift — 

 Mosquitoes — The Hull Club Commences Author — Stone Implements from 

 Swaziland — Danish Boulders — Coccospheres and Rhabdospheres — No 



PACE 



93 



EDINBURGH & LONDON 

 YOUNG J. PENTLAND 



Price One Shilling net. In America Thirty Cents. 



Subscription 13s. per annum {in advance) post free. 

 For the Colonies and Abroad 1 4s. per annum post free. 



All Rights Reserved. 



