WATKINS & D0NCA5TER, 



NATURALISTS, 



Keep in Stock — 



Apparatus and Cabinets 



Required by Collectors of Insects, Birds' Eggs, Plants, 



A Large Stock of 

 British, Continental & Exotic Lepidoptera 



and also 



Birds' Eggs 



(Singles as well as in Clutches). 



OUR CATALOGUE WILL BE SENT POST FREE ON APPLICATI" 

 36, Strand, London, W.C.2. 



THE MACROLEPIDOPTERA OF THE WORLD. 

 By PROP. AD. SEITZ, Ph.D. 



The publisher begs to announce that the Palaearctic section has appeared 

 complete in 180 parts, the Exotic section has reached the 221st pavt ; the con- 

 tinuance of the following parts is assured. 



For further particulars please apply direct to the publisher, Alfred Kernen, 

 Stuttgart, Poststr. 7. '■. . 



WANTED AT ONCE. — Hundreds of Lycasna belargus-6* , Cqrydon $ \ 

 Euchloe cardamines $ , and Vanessa io $ or $ . Also a few Thecla 

 rubi and Lye. avion. Will give cash or exchange. Can offer 

 Californian or Tropical Butterflies. Dealers or collectors of butterflies 

 in India, Java, Oceana, etc., please send list of showy butterflies. 



HAL NEWCOMB, 804, Elizabeth St., PASADENA, CALIF., U.S.A. 



Demy 8vo, Cloth. 292 pp. 354 illustrations. 



PLANT GALLS of GREAT BRITAIN 



A NATUEE STUDY HANDBOOK. 



BY 



EDWARD T. CONNOLD, F.Z.S., F.E.S. 



Price Ss. net ; post free, Ss. 6d. 



ADLARD & SON & WEST NEWMAN, Ltd., Bartholomew Close, London, E.C. I. 



