793 



PROCEEDINGS OF THE SOCIETY. 



MEETING 



Held on the 20th of October, 1909, at 20 Hanover Square, W., 

 E. J. Spitta, Esq., M.R.C.S., etc., Vice-President, in the Chair. 



The Minutes of the Meeting of June 16, 1909, also those of the 

 Special Meeting of the same date, were read and confirmed, and were 

 signed by the Chairman. 



The List of Donations, exclusive of exchanges and reprints received 

 since the last Meeting, was read, and the thanks of the Society were 

 voted to the Donors— special mention being made of the valuable con- 

 tribution from Dr. Braithwaite. 



From 



Walter Bagshaw, Elementary Photomicrography. (8vo,\ „,, . ,, 



London, 1909) ) 1 tie Author. 



Arthur Terry Mundy, The Anatomy, Habits, and Psychology I M M uiidv 



of Chironomus pusio. (4to, Leicester, 1909) j *' 



F. Shillington Scales, Practical Microscopy. 2nd ed. (8vo,) The Public! £ • 



London, 1909) J ? ' 



Wilhelrn Behrens, Tabellen zum gebrauch bei Mikroskopi-\ Q . w , „ • 



schen Arbeiten. 2nd ed. (8vo, Braunschweig, 1892) ..J oir js ramie L,iisp. 



Report of the British Association, 1905, South Africa. (8vo,\ n .,, 



London, 1906) / n%U °- 



Report of the British Association, 1907, Leicester. (8vo,{ n -,, 



London, 1908) \ m ™' 



Moss Papers. 11 vols, of Pamphlets .. Dr. R. Braithwaite. 



John Macoun, Catalogue of Canadian Plants. (8vo, Montreal,) n „ 



Dawson Bros., 1883) ) UUt0 - 



Seventy-seven Slides of Foraminifera from the late Wm. , r -,-, , rr fl 

 Tr-i. t t> i > <-i ii i- )■ Mr. Ernest Heat n. 



Kitchen Parker s Collection J 



Two Electric Lamps . . Mr. J. W. Gordon. 



Slide of Aulacodiscus superbus Mr. J. T. N. Thomas 



Mr. Wynne Baxter said that the diatom slide presented by Mr. J. 

 T. Norman Thomas was a very valuable present, as A ulacodiscus superbus 

 was an extremely rare form, which had only been found four or five 

 times. In 1S60 Dr. Greville was giving his papers on the Diatomacese 

 which had recently been found, and the bulk of the discoveries came 

 from the same place as this Aulacodiscus — the Island of Barbados, 

 which contained an unusually large number of chalky-looking calcareous 

 and silicious deposits of deep-sea origin. Aulacodiscus superbus was one 

 of the rare diatoms of the genus, all species of which were either marine 

 or were found in marine deposits ; they were all circular, and all nearly 

 flat, with costa:', moniliform rays, or well marked sulci connecting the 

 processes, which usually project : the peculiarity of this one being that 

 it has a reticulation something like that seen in Triceratium grande. The 

 only published illustration of it was by Mr. Kitton, printed in 1857 



