126 PROCEEDINGS OF THE SOCIETY. 



LIBRARY. 



The Library is in good order, and the number of books and 

 periodicals borrowed by Fellows during 1915 compares very favourably 

 with that of the previous year. 



Owing to the generosity of authors and publishers many useful and 

 important works have been added to the Collection. 



INSTRUMENTS AND APPARATUS. 



The instruments and apparatus in the Society's Collection continue 

 to be in good condition. 



During the past year only one donation has been received, a& 

 follows : 



March 17. — An old simple Microscope (supposed to have been made 

 by Cary), presented by Mr. Sydney C. Akehurst, F.R.M.S., which has 

 been incorporated into the Society's Collection. 



GAUGES. 



The Council lias this year issued the revised specifications for the 

 R.M.S. Standard Objective Screw and Eyepieces, and has deposited the 

 R.M.S. Standard Gauges with the Director of the National Physical 

 Laboratory, where they will be available for public reference. 



New standard Sizing Taps and Dies have been obtained and tested 

 by the National Physical Laboratory, and are now on sale. 



The Council is gratified to announce that as the outcome of the 

 deliberations of the Microscope Committee of the British Science Guild 

 (which included representatives of the R.M.S.), the R.M.S. Standards 

 have been incorporated in the specifications of certain standard Micro- 

 scopes ; and the British makers have been recommended to concentrate 

 their energies upon these Standard types at the termination of the War,, 

 in order to prevent Germany recovering its hold on the English trade. 



CABINET. 



During the year twelve slides of Mycetozoa, which were kindly pre- 

 sented to the Society by Mr. Charles H. Huish, F.R.M.S., have been 

 added to the Society's Cabinet. 



A Sub-Committee consisting of four Fellows (Messrs. D. J. Scour- 

 field, C. F. Rousselet, John Hopkinson, and E. J. Sheppard) has been 

 formed for the purpose of reporting upon the best means of classifying 

 the Society's collection of slides. One meeting has been held, but the 

 Committee is not yet prepared to formulate recommendations. 



aiEETINGS. 



During the year 1915 nine Ordinary Meetings have been held,, 

 which, in the earlier months of the year, were well attended, but latterly,. 



