ON BOTANICAL PHOTOGRAPHS. 433 



Botanical Photographs. — Ueport of the Committee., consisting of Pro- 

 fessor L. 0. MlALL {Chairman), Professor F. E. Weiss {Secretary), 

 Mr. Francis Darwin, Mr. W. G. Smith, and Mr. A. G. Tansley, 

 for the Registration of Negatives of Photographs of Botanical Interest. 

 {Drawn up by the Secretary.) 



During the past year sixty-two photographs have been added to the 

 collection, including a series of twenty-two photographs illustrating the 

 vegetation of Teneriffe made by Mr. Hugh Richardson of York, a 

 further set of photographs of Irish plants by Mr. R. Welch of Belfast, 

 and a series of photographs of alpine plants by Mr. Gr. K. Ballance. 

 The Secretary attended a meeting of the Central Committee for the 

 Survey and Study of British Vegetation, at which a proposal was made 

 that the photographs of British vegetation which are of ecological value 

 should be placed in the custody of the Central Committee for the Survey 

 of British Vegetation, and should be housed at University College, London. 

 This proposal requires ratification by the Committee of Section K. 

 No portion of the grant of 3^. has been expended. 



The Conditions of Health essential to the carrying on of the Work 

 of Instruction in Schools. — Report of the Committee, consisting of 

 Professor Sherrington {Chairman), Mr. E. White Wallis 

 {Secretary), Sir Edward Brabrook, Dr. C. W. Kimmins, Professor 

 L. C. MiALL, and Miss Maitland. 



During the year the Committee have set out several matters for in- 

 vestigation affecting the health and physical well-being of children in 

 schools. Sub-Committees have been appointed to investigate these 

 several matters, but some of the investigations are not yet complete. 

 They submit, however, for consideration of the Section this year reports 

 upon hearing and teeth of children, and upon children's playtime and 

 leisure. 



The Committee had in co-operation with them in their investigations 

 and deliberations the valuable assistance of Miss Findlay, Mrs. Gomme, 

 Mrs. White Wallis, Mrs. Kimmins, Miss Ravenhill, Miss Ross, Dr. Fried- 

 berger. Dr. Ballance, Mr. Sydney Spokes, Professor H. R. Kenwood, and 

 Dr. Shelley. 



Children's Hearing. 



The ear being the chief channel of instruction, it is unnecessary to 

 dilate upon the importance of taking steps to ensure that the hearing of 

 schoolchildren is satisfactory. 



Various methods have been adopted for testing the hearing of children, 

 and for this reason it is not always easy to compare the results of different 

 workers. In our opinion it is desirable to adopt some standard method, 

 one which is as simple as possible and one which is not deceptive in its 

 results. We are of opinion that there are drawbacks attaching to the 



1906. • FP 



