Annual Report. xxxi. 



^iven by the President and Mr. John Allan, and Mr. and Mrs. 

 R. H. Clayton entertained the guests to tea in the Common 

 Room. 



At a Special Meeting, held on October 14th, Dr. Irving 

 Langmuir gave an address on " Molecular Structure/' Two 

 Joint Meetings were also held : the first with the Manchester 

 Classical Association and the Textile Institution, at which 

 Professor J. Oliver Thomson gave an address on '' Rome and 

 China: the Ancient Silk Trade''; the other, with the Man- 

 <:hester Sections of the Society of Chemical Industry, the Insti- 

 tute of Chemistry, and the Societ\' of Dyers and Colourists, at 

 which Professor Arthur Harden read a paper entitled " Bio- 

 ■Chemical Method." The two Joint Meetings were held at the 

 Textile Institute. 



The times of the ordinary meetings were altered to 5-30 p.m. 

 •and 6-30 p.m. alternately. 



The Hon. Sir Charles A. Parsons, K.C.B., M.A., D.Sc, F.R.S., 

 "has consented to deliver the second Joule Memorial Lecture 

 •early next Session. 



Society's Accounts. 

 The cash account of the Society and a statement of assets and 

 liabilities are appended to this report. 



The latter statement shows a small improvement in the 

 financial position of the Society in comparison with the previous 

 year. 



Officers and Members of Council. 



On April 12, 192 1, the following resolution of the Council was 

 approved by the Society : — 



" That the Council be constituted as follows : a President, 



four Vice-Presidents, two Secretaries, a Treasurer, two 



Librarians, a Curator and nine other ordinary members." 



B3^ a resolution, approved by the Society on October 28th, 



1919, the Chairman and Secretary of the Chemical Section are 



-members ex officio. 



Society's Library. 



The Librarians report that during the Session 342 volumes 

 liave been stamped, catalogued and press-marked; 311 of these 

 were serials. The total number of volumes catalogued to date 

 is 39,482. 



The additions to the library for the Session amounted to 

 769 volumes : 705 serials, and 64 separate works. The donations 



