LINNEAN SOCIETY OF LONDON. 219 
os ie 7).—W. C. Williamson, ‘ Morphology of pitcher 
0 
CEsterr. Bot. Zeitschrift. —W. Voss, ‘ Neue rae ee 
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c 
Pharmaceutical Journal (June 2).—M. Hays ‘A new Alkaloid’ 
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; ae on Rimaneutils Fica 
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LINNEAN SOCIETY OF LONDON, 
March 1, 1883.—Sir John Lubbock, Bart., President, in the 
chair.—The following gentlemen were elected Fellows of the Bociety: 
—W. B. Barrett, L. J. K. ve pes J.B. Br Be gprs 
insects om) very great seas in this respect. Butterflies show 
appear t cosy ided to a sha extent by a preference for par- 
ticular colours 59 Diptera exhibit greater Sones though by 
absolut uch greater degree of constancy is mani- 
fested °y ‘the ‘pian: and this becomes all but absolute in the 
hive- an interesting circumstance that this constancy 
appears ‘to ceeeats in proportion to the part performed by the 
insects in carrying pollen from flower to flower. much larger 
num 
with certainty any general law, and especially a careful microscopic 
examination of the pollen attached to the proboscis, mandibles, 
legs, and under side of the abdomen and thorax. As respects pre- 
ference for particular colours, the Lepidoptera paid, while under 
