( Ixxix ) 
Professor Y. Sjostedt, of the Stockholm'Natural History 
Museum, gave a vivid account, with lantern illustrations, of 
the entomological discovei’ies, and the work done by the 
Swedish Expedition to Kilimandjai’o, of which he had been 
leader; while other papers were read in the adjoining rooms 
assigned to the several Sections detailed for the day. 
During the Session the following papers were read or 
communicated by Fellows of our Society :— 
Section op Economic and Pathological Entomology.— 
< ‘ The Artificial Distribution of Insect Pests ” (Professor F. V. 
Theobald); “ Galerucella lineola, its Life History and Habits, 
with notes on Preventive and Remedial Researches ” (Dr. R. 
Stewart MacDougall); “The Distribution of the Yellow Fever 
Mosquito, Stegomyia fasciata ” (Professor F. V. Theobald) ; 
“ Economical Questions in Bengal ” (J. M. Hewlett). 
Section of Bionomics, Physiology and Psychology.— 
“ Note on the Chemical Constitution of the red-coloured 
Secretion of Timarcha tenebricosa ” (communicated by Profes.sor 
E. W. Carlier and C. L. Evans); “ Les Accouplements 
Anormaux chez les Insectes ” (E. Olivier). 
Section of Evolution and Mimicry. —“ Mimicry” (Dr.F. A. 
Dixey, F.R.S.); “ Mendelism and Lepidoptera” (Professor 
R. C. Punnett); “ Experimental Entomology ” (F. Merri- 
field); “ A quoi sert le Mimetisme 1 ” (W. Schaus); “ The 
Systematics of certain Lepidoptera which resemble each other, 
and their bearing on general questions of Evolution ” (Dr. K. 
Jordan) ; “ Mr. C. A. Wiggins’s Researches on Mimicry in the 
Forest Butterflies of Uganda, 1909, 1910” (Professor E. B. 
Poulton, F.R.S.). 
Section op Nomenclature and of Bibliography, and 
Papers of General Entomological Interest. —“The Im¬ 
portance of the Uniform Use of Technical Terms referring 
to Types, Co-type, etc., and on the Eight of Authors to change 
the Names given by other Authors ” (H. H. Lyman); 
together with the following papers on subjects of general 
entomological interest, the majority of which, with the above, 
will appear, as we are informed, in the Transactions of the 
Congress presently to be published. “ La G^ographie et la 
Phylogenie des Fourmis” (A. Forel, Hon. F.E.S.); “Ants 
