Qawir) 
informed him that it was certainly the case in northern 
Australia that the dry-season dead leaves were warped and the 
wet ones flattened. 
In reply Mr. W. J. Kaye stated that he had been in 
Trinidad in the dry season, and noticed that the dead leaves 
were curled and bent, whereas in British Guiana which he 
visited in the wet season they were flat like damp blotting- 
paper. 
November 4th, 1903. 
The Prestpent exhibited a set of 323 butterflies from 
British Guiana, all captured on one day, August 28th, 
1903, between the 9th and 10th mile from the Potaro 
River to the gold-mines. The road starts from the 
river-side at a point about 30 miles above the confluence 
with the Essequibo. This opportunity of studying the 
proportions of the various constituents of the Miillerian 
group was owing to the kindness of Mr. W. J. Kaye. The 
specimens constituted the entire catch of a single day, and 
all were taken by the road-side, on the white blossoms of a 
large-leaved plant which springs up wherever the bush is 
cut down. The catch represented a full day’s work. August 
28th was a particularly dry day in one of the driest months 
in the year. The butterflies were most plentiful from 6 to 
11 a.m. and from 3 to 6 p.m., retiring into the thick bush 
during the hottest part of the day. 
The dominance of the black-hind-winged group is seen in the 
fact that it included no less than 295 specimens belonging to 
the following species :— 
ITHOMIIN &. 
Melinxa mneme—253. Mechanitis polymiuia—9. 
crameri—8. rs n. sp.—10. 
egina—9. 
39 
99 
DANAIN®. 
Lycorea ceres—1. 
- pasinuntia—3. 
