42 PROCEEDINGS OF SOCIETIES. 



Donations to Library, &c., to December 3rd, 1873: — 



From 



Land and Water. Weekly The Editor. 



Nature. Weekly Ditto. 



Atlienpeum. Weekly Ditto. 



Society of Arts Journal Society. 



Quarterly Journal of the Geological Society, No. 116 .. Ditto. 



Bulletin de la Socie'te' Botanique de France Ditto. 



A large Binocular Microscope, with all the Powers and 



Ajiparatus, Mahogany Case, &c., &c Chas. Woodward, Esq. 



Waltee W. Reeves, 



Assist. -Secretary . 



Eeading Microscopical Society.* 



Nov. 4, 1873. 



In addition to other objects of interest, Captain Lang exhibited 

 a sporaugial form of Orthuseira DtcJceii and Liparogyra spiralis (from 

 moss) sent to bim by Mr. Kitton. 



Mr. Tatem exhibited male flea of hedgehog, acari of stag-beetle, 

 feet of Xylacopa from Ceylon, and Kolpocefhalon, a parasite of the 



kingfisher. 



Dec. 2, 1873. 



Mr. Tatem laid before the Society a series of drawings illustrating 

 some phases of the development of the Eeineta of Ejnstylis nutans. 

 He also showed balsam and glycerine mounted specimens of the 

 acariue parasites of Ohisium and Gamasus from Mr. Mclntire. 



Medical Microscopical Society. 



At the ninth ordinary meeting of the Medical Microscopical 

 Society, held at the Eoyal Westminster Ophthalmic Hospital, on 

 Friday, Nov. 21st, Jabez Hogg, Esq., President, in the chair, the 

 minutes of the previous meeting were read and confirmed. 



Dr. Bruce described at some length the various methods of study- 

 ing inflammation. 



Dr. Bruce considered the description of the modus operandi of 

 observing inflammation in the frog's foot was useless for two reasons : 



1. The epithelial surface soon becomes dim with the action of 

 reagents, so as to obscure the vessels. 



2. The vessels are not altogether suitable, and, besides, there is 

 sometimes difficulty in stretching the web between the toes without 

 interfering materially with the circulation ; he therefore preferred the 

 mesentery — and recommended Hartnack's microscope — beginning the 

 examination with a low power, and afterwards using Hartnack's 

 No. 7 objective, which is equal to an English i-inch magnifying 

 power. 



The frog plate should consist of a piece of glass with a cork 

 (having a circular hole in the middle and covered with a small cover- 

 glass) cemented with sealing-wax to the one end of it. The mesentery 

 is then pinned out upon the cork over the glass. 



The frog should be injected with 1 minim of a I per cent, solution 

 of curara subcutaneously, because this paralyzes all the muscles except 

 * Ilcport supplied by Rlr, B. J. Austin. 



