192 THK entomologist's RECORD. 



consist of several compartments, in each of which a single pigment is 

 present. When contracted to the centre of the chromatophore, a 

 pigment plays no part in the coloration of the animal; when expanded 

 into the superficial network which communicates with the centre, the 

 pigment takes a share in the coloration. The exhibit showed pemmnent 

 microscopic-preparations of the chromotaphores, in which the natural 

 colours of the pigments (red, yellow, and blue) are preserved. Other 

 preparations demonstrated the fact that the chromatophores also contain- 

 a colourless fat which contracts and expands like the pigments them- 

 selves. The minute structure of the chromatophores was illustrated by 

 microscopic-preparations and by diagrams. The Crustacea exhibited 

 presented a most wonderful adaptability to the colours of their 

 en\ironment. 



We noticed, amongst others, the following entomologists present — 

 Rev. W. \\'. Fowler. Professors T. H. Beare. E. B. Poulton, and R. Meldola, 

 Colonel Rjingham, Dr. Dixey, Messrs. H. Rowland-Brown, A. J. Chitty, 

 .1. Collin, H. St. J. K. Donisthorpe, Hamilton J)ruce, Herbert Druce, 

 H. Ctoss, W. J. Lucas. R. Trimen, and C. 0. Waterhouse. 



We have just learned with the greatest regret of the death of Mr. 

 Thomas Tunstall in February last. Mr. Joseph INIerrin, too, the author 

 of " Merrin's Catalogue," also, we regret to state, died quite recently. 

 Now we hear of the loss of one of our leaders, Mr. R. McLachlan, F.R.S. 



We understand that the sale of the first part of Dr. Mason's library 

 went otr fairly well, but that most of the buying was done by the trade 

 the London trade combining as usual, but that extensive commissions 

 from some of the largest continental firms prevented the combination 

 ha\ing it all its own way. This cannot be said to be at all satis- 

 factory, though some of the l:)est lots went to private P>ritish buyers. 

 We should say that the prices were still, on the whole, unreasonably 

 low. Among the best a complete set of Buckler's Larvae, 9 vols., 

 produced only £6 '2s. 6d. : an original subscriber's copy of Wood's 

 Indr.e EntoDioloi/icus, 1st ed., £2 2s.; whilst a copy of the unsatisfactory 

 2nd ed. produced £2 15s.; complete set of Stainton's XatKral History 

 of the 'Tineina, £4 ; Stephens' lUuatrationn (Haustellata and Mandibu- 

 lata), £'6 3s.; Curtis' British Kntoinolor/i/, £16 10s.; Lang, Butterflies of 

 Europe, £2 12s. 6d. ; Godart and Duponchel, Ifistoire Xatitrrlle, etc., 

 £18 10s.; Haworth's Lepidoptera Britannica, £3 5s.; Barrett, Lepidop- 

 tera of British Islands, 7 vols., coloured plates, £11 5s.; Buckton, 

 Moiiottra/diof British Cicadae, etc., £1 12s. 6d.; " Zeller's Manuscripts," 

 4 vols., half calf, £2 12s. 6d.; Saunders' Ui/inefioptera-Acideata of the 

 llritish Islands, 5 vols., £5; Ganglbauev, Kafer ron Mitfeleuropa, 15s.; 

 Saunders' Henri ptera-Heteroptera of the British Islands, £1 16s.; 

 Edwards' Heimjitera-Houioptera of the British Islands, £1 12s. 6d. ; 

 Candeze, Monoi/raph des Elaterides, £2 2s. ; Buckton's Mono;/raph etf 

 British Aphides, 4 vols., £8 5s.; Cameron's Monoijraph of British phyto- 

 phaijoiis Ilymenuptera, 4 vols.. £2 10s.; Gemmingei- and Harold, 

 ( 'atalojiHs Coleo])terori()ii, 12 vols., £3 16s.; McLachlan's Mnnoyraphic 

 Herision and Synopsis of the Trichoptera of the European Eauna, with 

 supplements, £1 lis.; lAnnaea Entomnlnyica, 16 vols.. £1 12s. 6d., 

 and so on. The next part of the sale, on June 21st, contains long 

 series of the Transactions of the various learned societies and periodicals. 

 Of the publications of local British Societies, usually very rare even in 

 the best libraries and always difficult to obtain, there is an especially 

 strong lot. The quartos and larger books will be sold later. 



