NATURAL HISTORY SOCIETY OF GLASGOW. Ixix 



Mr. Robert H. Read, C.E., M.B.O.U., exhibited Scotch 

 specimens of the Wild Cat, Pine Marten, and Stoat, and 

 described the characteristics and habits of these and other 

 species of British Carnivora. 



Mr. L. Watt showed specimens of various Crustacea, including 

 Limulns polypJicntus, Latr., from New York ; Galaihea 

 squamifcra, Montagu, from the Moray Firth; Thia polita. 

 Leach, from Banff ; and Polybius Hensloivii, Leach, from the 

 English Channel. 



Mr. David Robertson, F.L.S., F.G.S., communicated a Paper 

 entitled "A Second Contribution towards a Catalogue of the 

 Amphipoda and Isopoda of the Firth of Clyde and West of 

 Scotland."* 



Mr. Peter Ewing read a Paper entitled "A Fourth Contri- 

 bution to the Topographical Botany of the West of Scotland." 



Mr. George Murray, F.L.S., Corresjionding Member, addressed 

 the Society on "The Geographical Distribution of Algas." 

 After referring to the zonal distribution of seaweeds, and the 

 various influences which aid or retard the migration of species, 

 he stated that although the study of the geographical distri- 

 bution of algfe is of comparatively recent origin, yet the floras 

 of the Arctic Sea, West Indies, and Australia have been pretty 

 fully investigated. A tabulated statement of the natural 

 orders, genera, and species found within these regions was 

 submitted by Mr. Murray ; and he drew attention to the 

 remarkable fact that while the aggregate records for the three 

 regions include 516 genera and 2179 species, of these only 32 

 genera and 12 species are conimon to all three regions. + 



On the motion of the Chairman a cordial vote of thanks was 

 awarded to Mr. Murray for his interesting address. 



26th April, 1891. 



Mr. A. Somerville, B.Sc, F.L.S., Vice-President, in the Chair. 



Mr. R. Donaldson, 78 Queen Street ; Mr. Robert Dunlop, 

 Whiterigg, Airdrie ; and Professor Edward E. Prince, B.A., 

 F.L.S., St. Mungo's College, were elected Ordinary Members. 



Mr. John Scott, 3 M'Aslin Street, was elected an Associate. 



Professor James Dunlop, M.D., exhibited dissections of the 

 male and female generative organs of the Salmon, with ova 

 before and after impregnation, etc. 



Mr. Thomas Boyle showed leaves of the Silver Tree 

 (Leucadendron argenteum, R. Br.) and specimens of Heaths 

 and other plants, from Table Mountain, Cape Town. 



Professor W. C. M'Intosh, M.D., F.R.S., F.R.S.E., F.L.S., 

 C.M.Z.S., Corresponding Member, addressed the Society on 



* Transaction!!, vol. iii., r- 199. t See Trans. Biol. Soc. Liverpool, vol. v., p. 16i. 



