SCOTLAND. 359 
The above copious extracts are from Mr Evans’s 
paper, in addition to which he has sent me the 
following notes :— 
“ Adders are still common in the neighbourhood 
of Aberfoyle, 8.-W. Perthshire, where I met with 
quite a number in April and May in 1896. I 
measured a few as follows: female 20 inches; male 
204 inches; female 22 inches (the two last killed 
at one blow); female 20? inches. In May 1898 a 
specimen said to be 26 inches in length was captured 
by the members of the Scottish Natural History 
Society on Auchencorth Moor.” — William Evans, 
F.RS.E., 38 Morningside Park, Edinburgh. 
“The adder occurs more or less in all the western 
and south-western counties of Scotland, both on the 
mainland and on the islands. It is, I believe, be- 
coming more numerous in unfrequented places, but 
on the islands which are pretty well populated it 
is scarcer, and in some probably quite extinct. I 
should say the adder is very numerous in Argyll- 
shire and Dumbartonshire and in Arran, common 
in Stirlingshire, Renfrew, and Ayr, occasional in 
Bute and Lanarkshire. This species, however, is 
so exceedingly shy that unless one devoted an 
entire hot summer to it no reliable knowledge of 
its numbers and habits could be got, and this no- 
body has done. The adder frequently swims across 
straits and creeks in Loch Lomond, going from 
