advertisements. 
Y. 
EXCHANGES. 
Articles for Exchange and Wanted (not involving a money transaction) are adver¬ 
tised in this column without charge ; an advertisement must ?iot contain more than 
forty words. 
Lepidoptera—D uplicates: Verminalis (bred), Cerago, var. flavescens (bred), 
Silago (bred), Osseana, Contaminella (bred), Nisella (bred). Desiderata: very 
numerous—William Newman, 21, Russell Street, Darlington. 
Lepidoptera — P. tnachaon, G. rham?ii , C. edusa, C. hyale, L. sybilla , G. album 
offered in exchange for other species of insects—C. T. Jones, 24, North Bailey, Durham 
Duplicates — Rhamni, Hyale , Aglaia, Lathonia, Atalanta , Urticce, To, Carda- 
mines, Brassicce, and oak egger (Quercus). Desiderata: Cardui, Polychlorus , 
Sibylla , Arion, C-album, and L. cervus (stag beetle)—G. White, 46, Grafton Square, 
Clapham, London. 
Coleoptera—W anted to exchange foreign beetles—Dr. Heath, 114, Ebury 
Street, London,’ s.w. 
For exchange—A fine series of Macroglossa stellatarun , also Journal of Con- 
chology (unbound) and Field Club (unbound) for 1893. What offers in British birds’ 
eggs ?—E. W. Swanton, Bratton St. Maur, Wincanton, Somerset. 
Wanted—S ide-blown (one hole) British birds’ eggs, in exchange for insects 
apparatus, or books and periodicals—H. K. Swann, 369, Euston Road, London, N.w’ 
Wanted—G ood botanical and other microscopic slides, coal tern fossils and 
minerals of crystallisation. Offered in return, British marine shells and unmounted 
microscopic objects and material, or state wants—A. J. R. Sclater, 43, Northumber¬ 
land Place, Teignmouth. 
Offered—S eaweeds, microscopic slides, and herbarium specimens, in exchange 
for natural history books, foraminifera soundings, exotic butterfly-wings, etc.—J. T 
Neeve, 4, Sydenham Road, Deal. 
Wanted—C arpenter’s or Brady’s “Foraminifera” for a month; I will give a 
dozen micro slides for loan of same—J. T. Neeve, 4, Sydenham Road, Deal. 
Wanted—N atural History books, Boy’s Own Papers, magazines, parts 1, 8, n 
and 12 Life Lore, and odd parts Cassell’s Canary and Cage Birds. Exchange Vol. 1 
Scientific Facts, Science Siftings, new setting boards, pigeons, bullfinches, etc.— 
Davis, 33, Brighton Terrace, Brixton, London. 
Birds’ Eggs—Wanted, side-blown eggs of landrail, gt. crested grebe, kestrel, 
swift, nightingale, wryneck, wood-wren, gulls, terns, ringed plover, buzzard, owls, 
red-backed shrike, gold-crest, skylark, starling, coot, dumlin, etc. Offered rare eggs 
in clutches or single—J. Ellison, Steeton, Keighley. 
Duplicates.—A bout 500 species of British coleoptera, all correctly named and 
neatly carded, including many rare and local. Desiderata: British and foreign 
coleoptera and foreign diurni.—A. Ford, Glen Mount, Braybrooke Rd., Hastings. 
Vipers.—W ill any readers kindly send me what information they may possess as 
to the distribution of the Viper in Cornwall ? I shall be pleased to send shells, micio- 
slides, books, etc. in return for spirit specimens of this reptile from any British locality 
or will purchase examples.—George Mason, 203, Ebury Street, Eaton Square, London 
