PROCEEDINGS OF THE SOCIETY. 599 



MEETING 



Held on the 18th November, 1914, at 20 Hanover Square, W., 

 Mr. J. E. Barnard, Vice-President, in the Chair. 



The Minutes of the Meeting of October 21, 1914, were read, and, 

 when confirmed, were signed by the Chairman. 



The List of Donations (exclusive of exchanges and reprints) received 

 since the last Meeting was read as follows, and the thanks of the Society 

 were accorded to the donors : — 



From 



An old portable Microscope, by Cary .. .. .. .. Mr. E. E. Banham. 



Six ivory sliders of botanical sections . . . . . . . . Mr. T. G. Taylor. 



Mr. Rousselet said that the portable Microscope designed by Cary 

 in 1828 would prove a valuable addition to the collection of the Royal 

 Microscopical Society. 



Mr. Frederic J. Cheshire made a communication on " Some Notes 

 on Focometric Methods," which was elucidated by means of the various 

 forms of Focometric apparatus and by illustrations drawn on the black- 

 board. 



Mr. Maurice Blood remarked that some time ago Mr. Cheshire had 

 brought his apparatus to the notice of members of the Brass and Glass 

 Section, and he (Mr. Blood) had then arranged with Mr. Cheshire to 

 bring up nearly 100 objectives, eye-pieces, condensers, etc., to the 

 Society in order that their focal length should be measured by Mr. 

 Cheshire's first apparatus. Time did not allow of the whole number being 

 measured, but a considerable number were, and in an entirely satisfactory 

 and wonderfully rapid manner. He had been particularly struck, too, 1 »y 

 the neatness of Mr. Cheshire's turn-table apparatus, which he (the 

 speaker) certainly thought was new as Mr. Cheshire claimed, and Mr. 

 Cheshire spent a large part of his time in demonstrating to other people 

 that their " novelties " were old, so that when he ventured on such an 

 assertion it meant a good deal. 



Mr. Bruce J. Capell said that a good many of the lenses were made 

 to use for a particular objective so as to be accurate so far as corrections 

 went ; he would like to know whether there would be any difficulty at 

 all in gauging the focal length as read, say, in an objective made for a 

 short tube. He understood that Mr. Cheshire's apparatus was made for 



