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Exhibits. 
A NEW METHOD OF PRESERVING INSECTS.—Prof. Lrrroy 
exhibited specimens of insects mounted on the method pre- 
viously described by Dr. A. Moore (Journ. Trop. Med. and 
Hygiene, Nov. 15, 1919, pp. 205-206), and drew attention to 
the value of this method for teaching, for travellers in the 
tropics, and for general economic work. He explained that 
the insect is mounted fresh between two slips of celluloid 
with a ring of plasticine and thymol; the latter must be 
well incorporated in the plasticine at the rate of 14 drachms 
to the pound. The specimens are well preserved, do not 
shrink, and retain their colour. 
This method aroused considerable interest, and its advan- 
tages were discussed by the Prestpent, Mr. Bacor, Mr. 
Durrant, Mr. Batrour Browne and other Fellows. 
THE EXISTENCE IN AFRICA OF A REMARKABLE PAPILIO OF 
THE ANTIMACHUS GROUP.—Mr. G. TaLBor said that when 
Mr. T. A. Barns was collecting Lepidoptera on the Lindi 
River in April 1920, he saw a remarkable butterfly, and he 
exhibited a coloured drawing of it which Mr. Barns had made. 
The insect appears to partake of the characters of both Papilio 
zalmoais and of P. antimachus, but is unlikely to be a hybrid 
between them. 
Since the publication of the note of this butterfly in the 
* Bulletin of the Hill Museum,” some further information 
has come to hand which seems to confirm the evidence of 
Mr. Barns. 
Monsieur F. Le Cerr, of the Paris Museum, has furnished 
the following account of an insect seen in French Guinea :— 
“A sergeant Monceaux, who took part in the Franco- 
Liberian Mission for the delimitation of the Liberian-French 
Guinea frontier, made a collection of over 4000 butterflies. 
He described having seen in the district of the Upper Sas- 
sandra River a large butterfly which, at midday, was drinking 
from a pool of water on the road. The butterfly was opening 
and closing its wings, and Sergeant Monceaux got quite close 
to it before it flew away. The wings were very long and for 
the greater part of a brilliant blue. 
