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effect of “ torsion ” on rocks ; he also showed some section of con- 
torted rocks under the microscope. 
Mr. Peter Cameron showed specimens of a peculiar variety of 
Water Shrimp, from a little loch in Mull. 
Mr. Stirrup read to the Section a translation he had made of an 
article in the Revue Scientifique^ on “Science Teaching and 
Pala3ontology in Germany,” by Alfred Gaudry, Professor of 
Palaeontology in the Paris Museum of Natural History. 
Mr. John Boyd read a continuation of his notes on Caligus, 
with illustrations drawn by himself. He also showed specimens 
of Cordylophora, under the microscope. 
(*) Mr. Peter Cameron read a paper on the Ilymenoptera of the 
Hawaiian Islands, by the Rev. J. Blackburn, B.A., and himself. 
Dr. Hodgkinson read a paper on the Humming of the Snipe, 
with demonstrations. 
Mr. Hyde exhibited some feathers which he had mounted 
between plates of glass for exhibition as lantern objects. 
Mr. Peter Cameron exhibited some specimens of fungi, bearing 
great resemblance to galls. 
Mr. Alfred Brothers exhibited the new Lantern Microscope 
lately presented to the Society by Mr. Wilde. 
Mr. R. D. Darbishire exhibited specimens of Rapana (Eephora, 
Conrad) quadricostatus^ Say, fossil from miocene beds in Maryland, 
U.S.A., and illustrated its alliances with specimens of Rapana 
Thomasii from Japan, and R. hidhosa, and also specimens of 
Laiiaxis Mawae, and further, specimens of Melapium hulhus, 
Wood, from Port Elizabeth, and of Coralliophila (Latiaxis) 
Benoitii and tortilis. 
Mr. Charles Bailey exhibited specimens of Cotula Coronopifolia 
L» from the neighbourhood of Leasowe, near Birkenhead. Mr. 
Bailey thought that this plant, which appears to have got estab- 
lished for several years in this part of Cheshire, was probably a 
castaway from the grounds of Leasowe Castle, or that it was an 
introduction with foreign ballast. 
Mr. Blackburn read a paper on the development of Bone. 
Dr. Hodgkinson read a paper “ On the Diffraction of Microscopic 
Objects in relation to the Resolving Power of Objectives,” to illus- 
