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Mr. Charles Bailey, F.L.S., gave an account of the 
germination of ferns, with diagrams. 
Mr. M. M. Hartog, F.L.S., described the anatomy of 
the fresh water mussel (Anodonta Cygnea (L).) 
March 10th, 1879. 
A. Brothers, F.R.A.S., in the chair. 
Mr. S. Moore exhibited a curious white growth, probably 
attributable to spores of a species of Polyporus, covering 
beech trees in Derbyshire. 
Mr. Rogers exhibited rings from the scales of cuttle fish 
(Loligo), brought up abundantly by two tides only at 
Barmouth, in 1874, collected by Mr. R. M. Christy. 
Mr, John Plant, F.G.S., read a paper upon “The Great 
Sheatfish, Silurus glanis, in Loch Bad-a-Luacradh, Ross.” 
The author gave a sketch of the natural history of the 
family of the Siluridse, which includes about a dozen known 
species, one of which the S. glanis inhabits some of the great 
rivers of Europe and a few of the lakes. It is most abundant 
in the Danube, Volga, and the Rhine, and is known in the 
largest streams which fall into the Baltic, being also at times 
caught in the upper regions of the Baltic, where the water 
is but slightly brackish. It has been obtained from Lakes 
