\W1LNTE73 a reliable "SETTER" 



FOR 



British and Exotic Lepidoptera- 



WATKINS & DONCASTER, 36, STRAND, W.C. 



STEVENS' AUCTION ROOMS. 



ESTD. 1 760. 



TUESDAY and WEDNESDAY, FEBRUARY 22nd and 23rd, 



AT 1 O'CLOCK. 



"CLARK COLLECTION" OF BRITISH LEPIDOPTERA. 



The final portion of the Unrivalled Collection formed by the late John Adolphus 

 Clark, Esq., M.P.S., L.D.S. Eng., F.E.S., etc., comprising extensive reared series, rare 

 species, and remarkable varieties, all in the most perfect state of preservation, and 

 representing the life-work of the late owner. 



This portion comprises the Geometrina, Pyralidina, Tortricina, and Tineina, with 

 fine varieties of A. grossulariata, the very valuable series of Peronea cristana (including 

 all the type specimens of his Monograph), further series of C. dispar, and many boxes of 

 duplicates ; also British Hymenoptera, fine and remarkable' forms of exotic Coleoptera 

 and other insects; a collection of L^pidoptera from Australia, etc., etc., together with 

 the first-class sixty-drawer, forty-drawer, and other cabinets in which they are contained. 



IVti?. a. C. STEVENS 



Will OFFER the above property by AUCTION at his rooms, 



38, KING STREET, COYENT GARDEN, LONDON, W.C. 



On view Monday prior, 10 to 4, and mornings of sale. Catalogues on application. 



Melanism and Melanochroism in British Lepidoptera 



(Demy 8vo., bound in Cloth. Price 5/-.) 



Deals exhaustively with all the views brought forward by scientists to account for the 

 forms of melanism and melanochroism ; contains full data respecting the distribution of 

 melanic forms in Britain, and theories to account for their origin ; the special value of 

 "natural selection," "environment," "heredity," "disease," "temperature," etc., in 

 particular cases. Lord Walsingham, in his Presidential address to the Fellows of the 

 Entomological Society of London, says, "An especially interesting line of enquiry as con- 

 nected with the use and value of colour in insects is that which has been followed up in 

 Mr. Tutt's series of papers on ' Melanism and Melanochroism.' " 



J. HERBERT TUTT, 22, FFancemary Road, Ladywell Road, Brockley, S.E. 



