322 



" The American Naturalist " ... ... in Exchange. 



'' Science Gossip " ... ... ... from the Publisher. 



"Report of the Smithsonian Institution ... ,, the U.S. Government 

 "The American Journal of Microscopy" ... in Exchange. 

 " The Microscope in Medicine "... ... from the Editor. 



«' The Analyst " ... ... ... „ „ 



" Annals of Natural History " ... ... purchased. 



" Burmeister's Manual of Entomology " ... ,, 



Dr. J. E. Smith's " How to See with the) 



Microscope'' ... ... J " 



Van Heurck's " Diatomaceae " ... ... „ 



"Grevillea" ... 



" The Northern Microscopist " ... ... in Exchange. 



"The American Monthly Microscopical") 

 Journal" ... ... ... j 



3 Slides — Sponge Sections. &c. ... ... from Mr. B. W. Priest. 



7 Slides— Desmids ... ... ... „ Mr. C. V. Smith. 



A letter from Mr. Curties relating to these slides was read to the meeting. 

 The President remarked that if Mr. Vance Smith had succeeded in doing 

 what was stated, he had done a very great thing. He had himself tried a 

 great many things, but all the various mixtures he had used had been found 

 to fail, except the water in which the Desmids were found. Some time ago 

 he saw a suggestion in the " Eoyal Microscopical Journal " that pickling 

 vinegar had been used with success, and he had given it a trial, and found 

 that it had not at present disturbed the endochrome, but it appeared to 

 have changed the colour to that peculiar green which was commonly 

 observed in pickles. 



Mr. Sigsworth said he had mounted some Desmids in a mixture of 

 glycerine and camphor water, and they had kept their appearance up to the 

 present time. 



Mr. Michael thought that success with such a medium depended very 

 much on the kind of Desmid which was tried. 



Mr. Ingi^en said that Dr. Cooke considered it best in many cases to get 

 rid of the endochrome, which sometimes prevented a complete examination 

 being made. The specimens before the meeting had not been prepared very 

 long, but they were very beautifully mounted, and it was to be hoped that 

 they would stand the test of time. 



Mr. Hailes said he had some slides of Desmids which were mounted 

 twelve or fourteen years ago by Dr. Dempsey, and they were now as good 

 as ever, and quite bright and green. 



Dr. Matthews said he also had some of Dr. Dempsey's slides ; he believed 

 they were only mounted in glycerine and water. 



Mr. Hailes said he believed that some specimens lost their colour from 

 exposure to the action of light. 



The President read a letter from the Ealing Microscopical Society thank, 

 ing those members of the Club who assisted them on the occasion of their 

 recent Soiree. 



