560 PROCEEDINGS OF THE SOCIETY. 



Mr. Crisp gave some further explanations as to the Wickersheimer 

 preservative process (see p. 325), which continued to be in great 

 favour in Germany for zoological preparations, but had not been found 

 so eifective in the case of plants. 



Mr. Stewart said that as regarded pathological preparations the 

 process was hardly a complete success, inasmuch as it entirely removed 

 all colour which was due to blood, apparently dissolving the colouring 

 matter. 



The President said the fluid was much the same as " Goadby " 

 and glycerine. 



Mr. Stewart read a note " On the Histology of Grantia compressa," 

 illustrated by drawings on the board and by preparations exhibited 

 under the Microscope. 



Mr. Spicer asked what reagents Mr. Stewart had made use of in 

 demonstrating the nucleus of the flagellate cells. 



Mr. Stewart said, in the first instance he put the living sponge into 

 a 1 per cent, solution of osmic acid, and then for preservation in weak 

 spirit and water. On returning to London some days afterwards, he put 

 it into syrup for twenty-four hours, and then into gum-water for twenty- 

 four hours ; the sections were cut by the ordinary freezing process. 

 Not being however altogether satisfied that the appearance of a 

 nucleus in the neck of the cell might not be due to other causes, he 

 afterwards stained some of the sections with logwood and found his 

 previous observations confirmed. 



Mr. Crisp explained a process for making pure " glycerine-gelatine " 

 (see p. 502), and the suggestion of Herr Hilgendorf for using thin 

 reflecting plates (see p. 528). 



The following Objects, Apparatus, &c., were exhibited :— 



Mr. Bolton : — Young Eel. 



Mr. Crisp : — Schobl's Dissecting Microscope (see p. 956). 



Mr. Curties: — Zeiss's Microscope with Abbe's Immersion Con- 

 denser and Amplifier. 



Mr. G. E. Davis : — Two slides of Micro-fungi {Arihroderma ?) 



Mr. Eoss : — Improved Microscope-stand. 



Mr. Stewart : — Slides showing structure of Grantia compressa, with 

 " palpocils." 



New Fellows. — The following were elected Ordinary Fellows : — 

 Messrs. J. C. Shenstone and W. Morris, jun. 



Walter W. Eeeves, 



Assist.-Secrctarij. 



