tS6 JOURNAL OF CONCHOLOGY, \*OI,. I3, NO. <;, JANUARY, Igit. 



ANNUAL REPORT OF THE LONDON BRANCH. 



Since the last Annual Meeting there have been six ordinary and six field 

 meetings of this branch. 



We desire once again to thank Canon Horsley for kindly placing a room at our 

 disposal for the evening meetings. All these were well attended, and many 

 interesting exhibits were made. No formal papers were read, but Mr. L. E. Adams 

 gave some enjoyable "chats" on shells and shell-collecting. Other members 

 contributed short notes on various subjects. 



The following field meetings were held : — at Chigwell, on May 7th, when 26 

 species were collected, including a few new records for S. Essex ; at Denham and 

 Harefield on June 4th, when a large number of species was noted, though nothing 

 not already recorded; at Leatherhead, on July 9th, where we took Claiisilia rolphii, 

 Pyramidnla rotuiidata var. alba, Cochlicopa lubrica var. hyalina; at Gravesend, 

 on August 6th, when Ccecilioides acicnla was found alive in the soil at the edge of a 

 gravel-pit ; at Burnham Beeches, on September 3rd, when many interesting shells 

 were taken, including Acanth. laniellaia, A. aculeata, Acicnla lineaia, Vertigo 

 pusilla, and V. substriata (the last a new record for Bucks) ; and at Crayford on 

 October 1st, when the historic Pleistocene section in the old brick-yard was visited, 

 and Corbicula finmiiialis, Pisidiiun astartoides, etc., were collected. 



We are glad to report a small increase in the membership of this branch. 



J. E. Cooper, Hon. Sec. 



FURTHER REPORT ON THE 

 ACCELERATION OF THE CENSUS IN 1910. 



The eftbrt commenced in 1909 to accelerate the completion of the Census of the 

 distribution of British Land and P'reshwater Mollusca, in which British conchologists 

 so heartily co-operated, has been actively continued during the year now drawing to 

 a close. 



The circular drawn up and issued by Mr. W. Denison Roebuck, of Leeds, has 

 been sent out in co-operation with the Official Recorder of the Society, and all 

 specimens sent in have been authenticated by Mr. John W. Taylor as Referee. 



The result of the year's working has been most satisfactory, and thanks are due 

 to numerous British Conchologists for their ready and willing co-operation in the 

 work. 



So much was done during the previous year, when more than twelve hundred 

 blanks in the distribution were filled up, that it was not to be expected that so large 

 a number would be sent in this year. 



Nevertheless, 542 blanks have been filled up for 90 vice-counties, averaging 5*9 

 species each, bringing up the total number of authentications to 10,395, 01^ ^" 

 average of 697 species for each area. 



The amount of the work accomplished may be gauged by the fact that the 1,755 

 new authentications made during the two years amount to one-sixth of the total 

 number registered during more than a quarter of a century's steady worl^. 



