Creer) 
SCIENTIFIC SOCIETIES. 
LinnEAN Society oF Lonpon. 
November 20, 1884.—Prof. P. Martin Duncan, F.R.S., Vice-Presi- 
dent, in the chair. 
Mr. A. Roope Hunt, of Torquay, was elected a Fellow of the Society. 
Mr. F. M. Campbell exhibited a Dragonfly caught in September on the 
left bank of the Dordogne from a flight of Dragonflies which were taking a 
south-easterly direction ; numbers were observed passing continuously for 
an hour and a half. He also drew attention to the steady progressive 
movement of the Humming Bird Hawk Moth when placed on its back. 
In a paper entitled “‘ Notes on the habits of some Australian Hymen- 
opterous Aculeata,” by Mr. H. L. Roth, the author states that the wasps of 
the genus Pelopeus (P. etus) build their nests on the walls, ceiling, legs 
of chairs, under the table, in cupboards, vases, between pictures and the 
walls, on curtains, and in all sorts of crevices in the house, or on the roof. 
No place is safe from their intrusion. When a cell is completed the wasp 
goes in search of spiders, and, seizing these, packs their half-dead bodies 
in the cell, lays an egg and closes the cell top. Afterwards rows of cells 
are added to the primary one, and dealt with in the same fashion, generally 
finishing with a streaked coating of mud, to conceal the real contents 
beneath. Of the Australian ants, Formica rufinigro is numerous, bold 
and destructive; it destroys the web of certain caterpillars, and thereupon 
wriggles them out to fall a prey to a host of attendant warrior ants. 
December 4, 1884.—Wituiam Carrutaers, F.R.S., Vice-President, 
in the chair. 
The following gentlemen were elected Fellows of the Society :—The 
Hon. F. 8. Dobson, LL.D., of Victoria, Australia; William A. Haswell, 
M.A., of Sydney, N. S. Wales; George W. Olfield, of London; Dr. 
George W. Parker, of Honolulu; Michael C. Potter, M.A., of Cambridge ; 
Vet. Surg. Thos. J. Symonds, of the Madras Presidency; W. A. Talbot, 
of Yellowpore, Bombay ; and J. M. Thompson, of Melbourne, Australia. 
A paper was read by Dr. Francis Day on the “ Relationship of the 
Indian and African Freshwater Fish-Fauna.” In this communication the 
author refers to certain papers of his read before the Society on previous 
occasions; but he more particularly deals with the differences shown 
between his own statements therein and those subsequently enunciated 
by Dr. Giinther in his “ Introduction to the Study of Fishes.” Dr. 
Day is inclined to believe that in the consideration of Indian fish-dis- 
tribution there seems a possibility that certain marine forms; for example, 
