PROCEEDINGS OF THE SOCIETY. 223 



A Note by Mr. Crisp " On the Poison Apparatus and Anal Glands 

 of Ants " (illustrated by two drawings) was taken as read for the same 

 reason. 



The President announced that after the conclusion of the ordinary 

 meeting in Ajiril a special general meeting would be held to make two 

 alterations in the Bye-laws. First, to provide that the 'composition 

 fee payable by all Fellows hereafter elected should be 31Z. 10s. instead 

 of 211. ; and secondly, that the Presidents or Chairmen of the Biolo- 

 gical or Microscopical sections of Societies coming under Bye-law 

 15 & might be elected Ex-ofi&cio Fellows in lieu of the Presidents of 

 the Societies. 



The following objects, &c., were exhibited:— 



Mr. A. D. Michael : — Four slides illustrating his paper, viz. : 



(I) Tegeocranus latus, nymph (newly traced). (2) Tegeocranus latns, 

 perfect creature. (3) Tegeocranus lahyrinthicus, nov. sp. (4) Scuto- 

 vertex sculptus, nov. sp. 



Dr. and Mrs. Hoggan : — Twelve slides illustrating their paper, 

 consisting of preparations from (1 & 2) the broad ligament of the 

 uterus in a pregnant mouse ; (3 & 4) from the mesentery of a rat ; 

 (5 & 6) from the mesentery of a guinea-jng ; (6) from the skin of a 

 leper (subcutaneous fat-layer) ; (7) from the mesentery of a nursing 

 mouse ; (8 & 9) from the mesentery of a mouse found nearly dead 

 of starvation in an empty jar ; (10) from the mesentery of a rat ; 



(II) from the mesentery of a young rat weaned a week previously by its 

 mother, which had brought it into a semi-starved condition, from which 

 it had recovered ; and (12) from the broad ligament of the liver of a rat. 

 All illustrating different stages of development and retrogression of the 

 fat-cell. 



[Preparations were variously treated : — (1), (3), (7), (8), (11), and 

 (12), silver and pyrogallato of iron; (2), (4), and (10), silver, osmic 

 acid, and logwood; (5) silver and logwood; (6) blood-vessels injected 

 first with silver, then with carmine gelatine, and section afterwards 

 treated with osmic acid, picro-carminate of ammonia, and indigo ; 

 (9) silver, picro-carminate of ammonia, and osmic acid. 



Mounted (5) in varnish, the others in glycerin.] 



Mr. Beck : — New binocular Microscope with swinging bar for 

 condenser, mirror, and lamp, and with improved movements. 



Mr. Parker : — Five slides illustrating his paper, viz. : (1) Scyl- 

 lai-us, newly hatched Phyllosoma larva. (2) Daphnia, entire and dis- 

 sected, showing structure of heart. (3) Asellus, mouth parts and 

 abdominal appendages. (4) Blatta, salivary gland and Malphi"-ian 

 tubules. (5) Chara, longitudinal sections of terminal bud. 



Mr. J. Mayall : — Tolles' illuminating traverse lens. 



Mr. Stephenson :— New -f^^ objective (by Zeiss) on the homogeneous 

 immersion system (shown on Podura). 



Mr. Crisp : — (1) A similar objective. (2) Dr. Seller's mechanical 

 microtome. (3) Two forms of mounting a hemispherical lens for im- 

 mersion illumination (by Messrs. Ross), one enabling the lens to be 



