THE _ BRITISH LEPIDOPTERA. 
< Ve “Ty two Be anak : 
ee Bee 
UNIQUE WORKS. 
perdi Pocket size, 64 by 44. cloth 
= ‘The illustrations are ex- gilt, round corners. 
oe Bach ts 6 ara rent amples of some of the most 6s. nét.: Post Free és. 4d. 
= Pere er > beautiful pictures of moths yet | 
‘The Moths of the produced in so smalla com- |The Butterflies of 
Reith | pass at so moderate a price 4s 
aay Be eioa bet we British Isles, 
outh, 
The Volumes give in a. 
handy form deseriptions | 
and figures of all the) 
Moths of the British Isles 
included in the groups 
formerly known as Macro- 
Lepidoptera, besides fig-| e 
ures of numerous searce | 
Varieties. Or: | 
*« We have already spoken | \ 
favourably of the earlier 
Volumes, and it is now our 
pleasing duty to say that 
there is no falling off in). 
the execution of the text, 
and plates of this Volume | 
Very good and up 
| warmly appreciated by every By R. South, F.E.S. 
practical entomologist and 
collector.’’—Daily Telegraph. 450. Coloured Figures 
Photographed, from Na- 
ture of every Species and 
many Varieties, also 
Drawings of Eggs, Cater- 
pillar, Chrysalis, and 
Food Plant, and seyeral 
descriptive . Illustrations 
in the Text. 
‘““Handy and satisfac- 
tory in every way. . . The 
information is full, the 
descriptions accurate.’’— 
Bookman. 
to date.” —W. F. KK. in 
Nature. 
This Nature Series is, without doubt, the most complete and unique of any ever 
placed before the public; having given the greatest satisfaction, owing to the accuracy 
of bot te text and illustrations. 
“The Publishers will be pleased to send Illustrated Prospectuses. 
FREDERICK WARNE & CO., BEDFORD STREET, STRAND. 
 FiONEL CLARKE: 
NATURAL- HISTORY BENT, es ROAD, GLOUCESTER, 
(Opposite Post O 
SURE ane. Collectors with every kind of a ae for the various branches of 
Natural History: Cabinets, Store Boxes, Butterfly Nets, &c, 
BIRDS’ EGGS, SKINS, LEPIDOPTERA and COLEOPTERA, &e., kept 
in stock in large quantities. 
: The largest stock of Eaas-in England to select ae including many very rare 
species. List of clutches sent if desired. Large buyers liberally dealt with, 
= Revised List of British LEPIDOPTERA, now ready; post free. 
Fs F -NEW AND SECOND-HAND BOOKS. 
 TAxipermy. Birds skinned and prepared for Cabinets or mounted by skilled assistants 
Fnil general Catalogue and Special List of Eaas and Sx1ns, post free. 
N.B.—No agents, and only one address as above, 
EXPERIMENTS ON THE. 
SEASONAL DIMORPHISM of LEPIDOPTERA 
By Dr. AUGUST WEISMANN. 
Translated from the German by W. E. Nicnouson, F.E.S. This very interesting paper 
appeared in seven numbers of the ‘Entomologist’ in 1896, and occupies 60 pages in 
its more convenient form as a separate pamphlet. Price 1s., postage ld. 
London: WEST, NEWMAN ¢& CO., 54, Hatton Garden, HC. 
