155 



tract from the report in a newspaper of a lecture by Dr. Dallinger, 

 the reporter referring to some wonderful creatures found in water 

 which were possessed of stentors or living trumpets. 



Mr. Hill brought down for exhibition a very small portable 

 microscope made many years ago by Nachet, of Paris, which he 

 thought the members might be interested in seeing. 



The President thought this was an exceedingly ingenious and 

 beautifully made little instrument, and, although so small, it seemed 

 very complete and efficient so far as could be expected within its 

 limits. 



Dr. Measures exhibited a new Abbe-Czapski drawing instru- 

 ment fitted to a microscope, together with a form of desk for use in 

 connection with it, designed by Dr. Bernard. The apparatus 

 would be found very efficient and reliable, as it was not necessary 

 to keep the eye in position all the time until a drawing was com- 

 pleted. The work could be left, if desired, and resumed later on 

 without the least difficulty arising. 



Mr. Swift brought for exhibition a new half-inch objective of 

 .5 N.A. 



The President said he had the opportunity of seeing this objec- 

 tive a short time since, and was greatly pleased with its perform- 

 ance. It was beautifully corrected, and its resolution was very 

 fine. 



Mr. C. Rousselet read a paper " On a New Floscule," by Dr. 

 Pittock, of Margate. 



A vote of thanks to the author and to Mr. Rousselet were unani- 

 mously passed. 



Mr. Karop read a paper entitled " What was the Amician 

 test ? " 



Mr. J. E. Ingpen said that two test objects used commonly to 

 have this name applied to them, one of which was Grammatophora 

 subtillisima, and the other a form of Rhomboides ; but the one that 

 was generally regarded as the Amician test was the one introduced 

 by Charles Topping, which was certainly a Rhomboides. He had 

 seen this, and also another slide marked " Amician test," which 

 belonged to Mr. Delferrier, upon which he had exercised his y^-in. 

 objective, and found that this must certainly be regarded as very 

 delicate. 



The thanks of the meeting were roted to Mr. Karop for his 

 communication. 



