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 LIFE 



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Assets Exceed £5,500,000. 



LIFE ASSURANCES. ENDOWMENTS. ANNUITIES. 



Every Desirable Form of Policy Issuep. 



ESTB. 1848 



James H. Scott, General Manager and Secretary. 



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D. F. TAYLER Sc Co., Ltd. 

 Entomological Pin Manufacturers, 



Small Heads and Perfkct Points, White, Black, and Gilt, 



BIRMIN GHAM ^nd LONDON. 



Can be obtained from Dealers throughout the World. 



J. T. CROCKETT & SON, 



MAKER OF EVERY DESCRIPTION OF 



ENTOMOLOGICAL CABINETS AND APPARATUS 



Store and Book Boxes fitted with Camphor Cells. Setting Boards, Oval or Flat, etc. 



Cabinets of every description kept in Stock. 



SPECIAL INSECT CABINETS, 



With Drawers fitted with Glass Tops and Bottoms, to show upper and under side without removing insects 



Store Boxes Specially made for Continental Setting, highly recommended for Beetles. 



All best work. Lowest possible terms for cash Prices on application. Estimates given. 



The trade supplied. ESTABLISHED since 1847 



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(Seven doors from Oxford Circus). 

 Factories-34, EIDING HOUSE STBEET and OGLE STREET, W. 



The Largest Stock of Cabinets and Boxes to select from. Great advantage in dealing with the makers. 



All Goods at Store Prices. 



To those Interested in the Nature and Orig-in of the Colour 

 Variation of Insects. 



Melanism and Melanochroism in Lepidoptera, 



By J. W. TUTT, F.E.S. 



Bound in cloth, price 2s. 6d. 



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

 the different forms of Melanism and Melanochroism : summarises the references scat- 

 tered over the EntomoL)2;icai Magazines for the last 30 year.s, and thus saves students 

 the expense of investintrin theoLl Vols, of expensive magazines ; contains full data re- 

 specting the distribution of melanic forms in Britain, and theories to account for their 

 origin ; tiie special value of" natural selection," " environment," " heredity," " disease," 

 " temperature," &c. 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 connected 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.' " 

 To be obtained direct from the Autlioi-, Eayleigh Villa, Westcombe Hill, S.E 



