EXCHANGE. 
To American Lepidopterists.— John A. Mason would be glad to correspond in 
view to exchanging British for American specimens. Address : Gun House, St. 
James’s Park, London. 
Duplicates : E. advenaria, A. sylvata, M. albicillata, E. albulata, E. omicronaria 
and trilinearia, E. pulchellata (and larvae), N. cristulalis, A. ulmata, A. prunaria, 
H. crassalis, N. pulveraria (fair), M. euphorbiata. Coleoptera : Carabus nitens, 
Calosoma inquisitor, Silpha 4-punctata, Trypodendron domesticum, Corymbites 
cupreus, Elater pomorum, and others. — A. E. Hodgson, B. Lane End, Coleford, 
Gloucester. 
J ust Published. Gratis. 
pATALOGUE op BOOKS on ENTOMOLOGY, CONCIIOLOGY, 
and INFUSORIA. No. 520. Frankfort-on-Maine, June, 1880, Joseph Bakr 
and Co. ; to be had also of Messrs. S. Low & Co., 188, Fleet Street, London, E.C. 
COLLECTION OF BIRD SKINS, &c., of the late SIGISMUND RUCKER, Esq. 
1MR. J. C. STEVENS will Sell by Auction, at his Great Rooms, 38, 
King Street, Covent Garden, on Tuesday, August 10th, at half-past 12 o’clock 
precisely (without reserve), the Collection of BIRD SKINS formed by the late 
S. Rucker, Esq., comprising picked specimens of Birds of Paradise, Trogons, 
Humming Birds, and all the choicest varieties of handsome and showy Birds. May 
be viewed after 2 o’clock the day prior and Morning of Sale, and Catalogues had. 
COLLECTION OF LEPIDOPTERA. 
II /T R. J. C. STEVENS will Sell by Auction, at his Great Rooms, 38, 
King Street, Covent Garden, on Friday, August 13th, at half-past 12 o’clock 
precisely, a Valuable Collection of BRITISH AND FOREIGN MOTHS AND 
BUTTERFLIES, also several Mahogany Cabinets, and a few Books. In this Sale 
will be included several choice specimens of euphorbias, celerio, lineata, pulchella, 
alni, conspicillaris, &c., from the collection of the late Mr. F. 0. Standish ; and a 
quantity of insects collected in the Fens of Cambridgeshire and Norfolk, Rannoch, 
and Ireland, during the past three summers by Mr. E. G. Meek’s collectors. 
May be viewed the Morning of Sale, and Catalogues had. 
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, 1/6, 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. 
During August, larvae of Attacus Atlas, Attacus mylitta (Tusseh silk-moth), 
Actias luna, and other exotic Bombyces, also continental and British species, in- 
cluding V. Antiopa, D. euphorbiae, and other rare autumn feeding species. 
British Lepidoptera, Exotic Lepidoptera and Coleoptera, Bird’s Eggs. 
Show Room fob Cabinets, &c. 
36, STRAND, W.C., 5 Doors from Charing Cross. 
New Catalogue free on receipt of stamp. 
foreign lepidoptera, entomological BOOKS, &c. 
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 LEPIDOPTERA 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 LARVJE of rare British Lepidoptera; FOREIGN COLEOPTERA; 
ORTHOPTERA, &c., Ac., 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 LEPIDOPTERISTS 
CALENDAR : limp, 3/6 ; interleaved, 5/. COMPLETE LIST OF BRITISH 
LEPIDOPTERA : for exchange, 3£d. ; labels, 6d., each (per doz. 2/9 and 5/) ; 
all post free. 
H. W. Mabsden "Regent Street, Gloucester. 
