24 



o 



PROCEEDINGS OF THE SOCIETY. 



AN ORDINARY MEETING 



OF THE Society was held at No. 20 Hanover Square, London 

 ON Wednesday, February 16th, 1916, Mr. E. Heron-Allen, 

 President, in the Chair. 



The Minutes of the last Meeting, which had been circulated, were 

 approved, and duly signed by the President. 



The Hon. Secretary read the names of the following candidates for 

 election, whose certificates were suspended in the usual way : — -Messrs. 

 C. H. Bocock, P. J. Hazlediiie, and John Richardson. 



Dr. Eyre showed a Portable Incubator, made by Messrs. Hearson 

 and Co., for use in bacteriological work. It consisted of a small oak box, 

 having a compartment surrounded by resistance wires, and heated by a 

 4-volt accumulator at one side, and furnished with a switch to enable the 

 current to be turned on or off. The compartment was large enough to 

 accommodate a small metal tray or cage, to carry test-tubes of nutrient 

 media. A small clinical thermometer, suspended by a couple of stays on 

 the inside of the door, recorded the temperature. 



Before reading the paper hj himself and Mj'. Charles Rousselet, on 

 " The Progress and Development of Vision and Definition under the 

 Microscope," the President said it devolved upon him to thank Mr. 

 Earland for assistance given in preparing the material, and also 

 Mr. Court for the immense amount of labour that he had devoted to 

 the matter, and the readiness with which he had placed at the disposal 

 of the Society his unparalleled knowledge of ancient Microscopes. He 

 had given several days to the preparation of the exhibit, with the 

 manual assistance of an expert sent by Mr. C. Lees Curties, who had 

 been good enough to have the instruments in the collection cleaned up 

 and arranged for this occasion. 



The text of the paper itself will appear in due course in the pages of 

 the Society's Journal. 



Mr. Court stated that it had been generally thought that the aquatic 

 Microscope was an improvement on Ellis's Microscope, and at first sight 



