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Proceedings of the Royal Society of Edinburgh. 
forget that he has been engaged for many years in the study of Palaeozoic Lamellibranchiata and 
is recognised as a leading authority on the subject. Among his more important contributions to 
the literature of this branch of palaeontology it may be sufficient to mention his monograph on the 
British Carboniferous Lamellibranchiata, published by the Palaeontographical Society (1896-1905), 
and his memoir on “The Lamellibranchs of the Silurian Rocks of Girvan,” based on the fossils 
gathered by that enthusiastic collector Mrs Gray, and communicated to this Society. 
The following Communications were read : — 
1. Plant Remains in the Scottish Peat Mosses. Part IV. By Francis J. Lewis, M.Sc. , 
F.L.S. Communicated by Dr John Horne, F.R.S. ( With Lantern Illustrations.) Trans., 
vol. xlvii. 
2. On the Validity of the Mendelian Theory. By Dr D. Berry Hart. ( With Lantern 
Illustrations.) 
3. Did the Tail of Halley’s Comet affect the Earth’s Atmosphere ? By Dr John Aitken, 
F.R.S. Proc., vol. xxx. pp. 529-550. 
4. Sir David Gill exhibited some photographs of Halley’s Comet taken in Egypt and in 
South Africa. 
Mr Robert Somerville signed the Roll, and was duly admitted a Fellow of the Society. 
The following Candidates were balloted for, and declared duly elected : — Rev. Robert Sibbald 
Calderwood, Professor James MacKinnon, Dr Gabriel W. Lee, Loudon MacQueen 
Douglas. 
