EXCHANGE. 
Duplicates : Epuraea immunda, Ips 4-guttata, Crepidodera Atropae, Aphodius 
depressus, Corymbites cupreus, Telephorus alpinus, Elater pomorum. Desiderata : 
local Coleoptera or Lepidoptera. — A. E. Hodgson, B. Lane End, Coleford Glouoes. 
Urgently wanted : a few eggs of P. Maohaon, also of E. Caasiope, for which I 
should be glad to make a return — Wm. Buckler, Emsworth. 
If any of my old correspondents are willing to assist me with specimens of 
Lepidoptera for our local Museum, I shall be glad to hear from them. Can give 
duplicates of the following in return (chiefly bred) : T. w-album, T. querciis, N. 
hispidaria, C. fluctuosa, X. gilvago, X. citrago, and many others. — Wm. Thomas, 
Eastwood Yale, Rotherham. 
STUDIES ik the THEORY or DESCENT. By Dr. Aug. Weis- 
mann, Professor in the University of Freiburg. Translated and Edited by 
Raphael Mf.ldola, F.C.S., Secretary of the Entomological Society of London. 
With a Prefatory Notice by Charles Darwin, F.lt.S. 
Now ready, Part I., On the SEASONABLE DIMORPHISM op BUTTERFLIES. 
With 2 Coloured Plates. Price, to Subscribers for the complete work, 8s. This 
Part contains Original Communications by Mr. W. H. Edwards, of Coalburgh. The 
Subscription for the complete work is 30s. 
London : Sampson Low, Marston, Searle, & Rivington, Crown Buildings, 
188, Fleet Street, E.C. 
FOR SALE, 
O ~V A, LARV^l, AFTI0 PTJP^! 
OF 
BRITISH LEPIDOPTERA. 
For Price List, apply to , 
W. H. HABWOOD, Colchester. 
FOREIGN LEPIDOPTERA, ENTOMOLOGICAL BOOKS, Ac. 
The Price List of EUROPEAN LEPIDOPTERA comprises all species of Rhopalo- 
cera occurring in Europe; the most interesting Heterocera, and all rare and 
reputed British species. Selections of EXOTIC LEPIDOPTEKA will be sent 
on approval. Lists of the principal species can generally be supplied. N.B. — 
Special desiderata will be procured as opportunity offers at the lowest rates. 
BIRD-SKINS AND EGGS. — A very large and carefully selected stock on hand. 
PRESERVED LARVAE of rare British Lepidoptera ; FOREIGN COLEOPTERA; 
ORTIIOPTERA, &c., &c., also supplied. 
The best New ENGLISH BOOKS on Lepidoptera kept in stock; and others, new 
or second-hand, on this or other Natural History subjects, English or Foreign, 
will be procured on the shortest notice. MERRIN’S LEPIDOPTERIST’S 
CALENDAR: limp, 3/6; interleaved, 5/. COMPLETE LTST OF BRITISH 
LEPIDOPTERA : for exchange, 3£d. ; labels, 6d., each (per doz. 2/9 and 5/) ; 
all post free. 
H. W. Marsden, Regent Street, Gloucester. 
WATKINS and DONCASTER, Naturalists, 
Keep in stock all Articles for Entomologists : Umbrella Net, 8/- ; Folding Cane or 
Wire, 4/6 ; Plain Ring, 2/-; Pocket Boxes, 6d., 1/- ; Store Boxes, 2/6, 4/-, 5/-, 6/- ; 
Zinc Pocket Boxes, l/6, 2/-, 3/- ; Setting Boards, from 6d. to 1/10 ; Complete set, 
10/6; Breeding Cages, 2/6, 5/- ; Sugaring Tins, 2/-, 3/- ; Killing Bottles, 1/6 ; Pins, 
1/- per ounce ; Setting Houses, 9/6, 11/6, Full Catalogue on application. 
Now on Sale — larvae of Parnassius Apollo, Apatura iris, Limentis sibylla and 
populi, several other European and a number of British species ; also, in different 
sizes, larvae of Attacus Atlas, Actias luna, Telea polyphemus, eggs of ditto, and all 
species in Catalogue now on hand, besides Attacus mylitta (the Tusseh silk-moth 
of India), a very variable species, described under many names from different 
localities. 
British Lepidoptera, Exotic Lepidoptera and Coleoptera, Bird’s Eggs. 
Two Excellent Second-hand 40-drawer Cabinets and others for sale. 
Show Room for Cabinets, &c. 
36, STRAND, W.C., 5 Doors from Charing Cross. 
New Catalogue, just issued, free on receipt of stamp. 
