PROCEEDINGS OF THE SOCIETY. 799 



Mr. Hy. E. Hurrell : — Lophopus crystallinus. 



Mr. A. Morley Jones : — Cyclosis in Leaf of Anacharis. 



Mr. J. Milton Offord -.—Hydra viridis ; Volvox globator. 



Mr. F. J. W. Plaskitt : — Surirdla, showing Endospores. 



Mr. C. F. Rousselet : — Rotifera, various. 



Mr. D. J. Scourfield -.—Peracantha truncata with winter egg, showing 

 thickening of chitin on back ; ditto, with winter egg, showing line of 

 special cells running across valves. The anterior ventral portion of 

 the valves breaks away along this line. 



Mr. T. J. Smith : — Hydra viridis. 



Mr. 0. D. Soar : — Brachypoda versicolor, nymph. 



Mr. H. Taverner : — Brachypoda versicolor, 9 



Mr. Geo. Tilling : — Cristatella macedo. 



Mr. W. T. Waller : — Lophopus crystaUina. 



Mr. J. C. Webb : — Melicerta sp. 



Mr. J. Wilson : — Plumatella repens ; Stephanoceros Ekhhor nii . 



MEETING 



Held on the 10th of November, 1910, at 20 Hanover Square, W. 

 Professor J. Arthur Thomson, M.A. F.R.S.E., President, in 

 the Chair. 



The Minutes of the last Meeting, held on the 19th of October, 1910, 

 were read and confirmed, and were signed by the President. 



The List of Donations (exclusive of exchanges and reprints) received 

 since the last Meeting was read, as follows, and the thanks of the Society 

 were voted to the donors : — 



From 



Two Slides of Pleurosigma Hon. T. Kirkman. 



Old Ivory Sliders containing objects, and Slider contain- 1,,. yr p Coodina 



ing " magnifiers " in a brass holder J 



Old Pocket Magnifiers in brass box Mr. Chas. Lees Cur ties. 



Slide of Eggs of Trochodota ; ditto Gorgonia spicules;!,, ,r j ^ ;, 



Six Slides, miscellaneous f 



Microscope by Oberhaeuser and Hartnack Mrs. Weschi. 



In connexion with the donation of two slides of Pleurosigma. Dr. 

 Hebb read the following extract from a letter received from the Hon. T. 

 Kirkman : " May I ask you to give me what information you can as to 

 the rarity or otherwise of fresh-water Pleurosigmas with oblique striae 

 and their value as such to collectors, also is it possible to say with any 

 certainty, without sending the raw material, what is the name of the 

 species to which this form belongs ? Should these two slides be of any 

 interest to the Society, will you kindly ask them to accept them as a 

 contribution to the Cabinet. 1 ' 



