() sxxxeve ") 
November 8, 1893. 
Henry Joun Exwes, Esq., F.L.S8., F.Z.8., President, in 
the chair. 
Donations to the Library were announced, and thanks voted 
to the respective donors. 
Election of Fellows. 
Mr. Henry Jerome Turner, of 18, Drakefell Road, Hatcham, 
S.E.; Mr. F. W. Urich, of Trinidad, West Indies; and Mr. 
John Cooper Webb, of 32, Henslowe Road, Dulwich, 8.E., 
were elected Fellows of the Society. 
Exhibitions, &c. 
Mr. F. Merrifield exhibited some low-temperature forms of 
Vanessa atalanta, artificially produced, which showed a great 
reduction in the area of the scarlet bands on the wings, and 
a great increase in the area of the white and bluish markings. 
Professor E. B. Poulton described and illustrated, by means 
of a map, a simple method for showing the geographical dis- 
tribution of insects in collections. Below the name-label of 
the genus, and of each species, are placed coloured slips of 
such a size as to be distinctly visible at a distance; and the 
colours, with one exception, correspond with those made 
use of in the map at the beginning of vol. i. of Dr. A. R. 
Wallace’s ‘Geographical Distribution of Animals.’ The 
exception referred to is the Palearctic Region, which is 
coloured blue, instead of pale brown, as in the original. 
Framed maps of the same kind, and coloured in the same 
way as the one he exhibited, are placed in the museum, 
so as to be readily seen from various groups of cabinets. In 
these maps the names of the Regions, and numbers of the 
Sub-Regions, are distinctly printed, so that they can be 
read at a considerable distance; while the sea is left un- 
coloured. Thus the regional distribution of genus and 
species can be comprehended at a glance. The Sub-Regions 
are also indicated; for upon each coloured slip a rectangular 
area divided into four squares is printed. In these squares 
the numbers of the Sub-Regions over which the genus or 
