PROf.'REDINr.S : ANNUM. REPORT OF l.EKDS BRANCir. 255 



The Library is not so much used by members as it might l)e, containing as it 

 does so many valual)le books and papers relating to all branches of the science. 

 This can hardly result from lack of knowledge of what the Lilirary contains, as was 

 the case before the publication of the Catalogue, and it would be gratifying to see 

 more use made of it than at present. 



RECORDER'S REPORT. 



Since the publication of the last Report in \\\& Journal of Conchology (vol. I2, 

 p. 16) 535 new county records have been registered ; for a great many of these 

 thanks are due to Mr. J- W. Taylor, who has acted as referee in critical cases, and 

 from whose Monograph liberty has been taken to extract records, in cases where 

 the Society had none, and which are vouched for by Mr. Taylor personally. 



Thanks are also due to Messrs. A. Mayfield, J. W. Vaughan, A. H. Jowett 

 Murray, J. E. Cooper, J. R. le B. Tomlin, C. Upton, H. E. Napier, and C. E. 

 Wright, among others, for specimens from various English and Welsh localities. 



No new records have been received during the past year from Ireland and 

 Scotland. It is earnestly desired that collectors in the latter country will forward 

 specimens, as the distribution of our most common species is but imperfectly known. 

 There have been so many new records during the past few years that the publica- 

 tion of a new Census may be deemed advisable before long. 



A new scheme of recording has been formulated by Mr. W. Denison Roebuck 

 for the benefit of Mr. J. W. Taylor's Monograph. I have been kindly invited to 

 co-operate with Mr. Roebuck and INTr. F. Booth in the working of this scheme ; 

 and as it will greatly assist the Conchological Society's records, I have pleasure in 

 accepting the invitation. 



It is proposed to send out printed lists to collectors in all parts of the British 

 Isles, with a request to help us by sending for inspection such species as are not 

 erased from the list. Specimens may be sent to Mr.W. D. Roebuck, Mr. F. Booth, 

 or myself, to be returned to sender if required. It is hoped that our efforts will 

 meet with a ready response, and that no species, however common, will be deemed 

 of too little importance, as we aim at the acquisition of a perfect knowledge of the 

 distribution of all our indigenous species of land and freshwater mollusca. 



ANNUAL REPORT OF THE LEEDS BRANCH, 



For the N'ear ending 7th December, 1907. 



The Annual Meeting was held at the Leeds Institute of Science and Art, when 

 the Report for the year just ended was jjresented by the Hon. Secretary, Mr. J. E. 

 Crowther ; the retiring President, Mr. F. Booth, in the chair. 



Twelve meetings had been held, with an average attendance of six members, 

 exclusive of visitors ; seven of them in the field, and five in the Leeds Institute and 

 Cartwright Hall, Bradford. 



The first field-meeting was held in April at Malham, where a very profitable 

 day was spent, thirty-four species and thirteen varieties being noted during the 

 day. The second was held at Ingleton, but here the dry weather was against 

 successful collecting. The third was held at Leeds for a visit to the habitat for 

 Limnaa pereger m. sinistrorsiiiii, recorded by the late Mr. W. Nelson, but the 

 members were unsuccessful in obtaining any. The fourth was held at Bolton 

 Woods, Wharfedale, for an investigation of Posforth Gill ; heavy rain during the 

 whole of the afternoon prevented any search being made. The fifth meeting was 



