Gr ae 
to rest upon two squares at the same time. Thus the con- 
flicting colours would operate during the second and third 
stages. Mr. Poulton said he hoped to make such an experi- 
ment during the present season, and he should be extremely 
glad if others would do the same. In conclusion he remarked 
that the thanks of the Society were certainly due to Mr. 
Griffiths for his careful experiments, and to Mr. White for the 
trouble he had taken in arranging and bringing out the notes. 
Lord Walsingham observed that pigment took longer to 
form when the surroundings are dark than when they are 
light; and that dark colours absorb and radiate heat more 
than light colours. 
Mr. Jacoby, Dr. Sharp, Mr. White, and others continued 
the discussion. 
April 4, 1888. 
Dr. Davip Suarp, F.L.S., F.Z.S., President, in the chair. 
Donations to the Library were announced, and thanks voted 
to the respective donors. 
Election of Fellows. 
The Rev. J. H. Hodson, B.A., of Torquay, Devon; Mr. 
A. J. Croker, of New Cross, S.E.; Mr. G. C. Griffiths, of 
Cotham, Bristol; and Mr. Albert H. Jones, of Eltham, Kent, 
were elected Fellows. 
Exhibitions, &c. 
Mr. H. Goss exhibited a large number of insects lately 
received from Baron Ferdinand von Mueller, K.C.M.G., 
#.R.S., of Melbourne, which had been collected by Mr. Sayer 
on Mount Obree and the adjoining ranges in New Guinea, 
during Mr. Cuthbertson’s recent expedition there under the 
direction of the Royal Geographical Society of Australia. 
The collection comprised about 240 species of Coleoptera, 
150 species of Lepidoptera, 48 species of Hemiptera, and a 
few species of Diptera, Hymenoptera and Orthoptera. The 
Lepidoptera included twenty species of butterflies, viz. :— 
Calliplea Sawnviersit (Felder), Chanapa angasti (Felder), Hama- 
