I I 



254: 



RKPOirr — 1884. 



pigs 1,259 pp. ; it is divided into four sections, eneli with a separate alpha- 

 betical index, in order that single sections may be sold separately. Of 

 the ' IJericht ' for 1SH3, sections 2 (Arthropodii), and 3 (Mollnsca), aro 

 nearly ready, and will bo published in September. The whole 'Bericht' 

 is now edited by the station, under the wire of Drs. Paul Mayer and 

 W. Giesbreidit. In future the arranf>;ement of the various records will 

 be more unilorm, each f^roup of animals bcinjj^ treated under the following 

 heads : — n. Anatomy, Ontojjeny, etc. ; b. Iliology, Domestication, etc. ; 

 c. Classification and rjinnal relatioi.s ; </. Palaiontology. Special caro 

 -vvill hi' talcen to render the section on the classification of a group intelli- 

 gible to, and easy for conPuIt;ition by, every zoologist whether he bo a 

 specialist or not — tiie new genera, species, varieties, and synonyms in 

 every family being arranged in alphabetical lists. 



E.rtrticfs from the General Jicport of the Zoohnjii-dl Stution. — The usual 

 lists of the natui'iilists who have worked at the station, and of the memoirs 

 published by them, will be found appended, together with other details 

 " iudly furnished by the olhcers of the station. 



The Vivitisli AssiH'iatioii. Tuhle. — Your Committee have the pleasure to 

 report that important researches have been successfully conducted on 

 the table at their disposal during the past year; and further that the 

 table has been occupied during nearly tlie whole of the working season. 

 The use of the table was successively granted to ilr. A. G. Bourne and 

 Prof. A. M. Marshall, Mr. J^ourne's period of occupation extending over 

 ;i term of six months by spcciaJ permission ot" tlic Committee. Both of 

 these gentlemen have furnished reports concerning the investigations 

 undertaken by tliem at the station, together with a summary of the 

 results respectively arrived at; and both are to be congratulated on the 

 successful character of their I'csearches. The reports in quest .on aro 

 appendeil. 



With these gratifying assui'ances of the undeniable utility of the 

 British Association tabh* before them, your Committee confidently re- 

 commend the renewal of the grant; and they would further specially 

 recommend that the amount should bo increased to 100/. (instead of 80/. 

 find 90/. as in previous years), in conformity with the arrangements made 

 by the Directorate of the station with other countries. 



I. Beport on the Onntpaflon of the Tuhle hij Mr. li. G, Bourne. 



I occupied the table from November 1, 1883, until April 14, 1884. 



I devoted the greater portion of the time to a further investigation of 

 the anatomy of the marine leech Povtohdcllo, and, as far as material would 

 allow, of Bninchcllion. The results I obtained have been already pub- 

 lished together with other matter in a paper entitled, ' Contributions to 

 the Anatonxv of the Hirudinea,' in the ' Quarterly Journal of Microscopical 

 Science,' July 1884. 



The most important of these results consisted in a knowledge of the 

 sti'ucture and relations ol' the nephridium in I'ontohilella. This organ 

 has been hitherto entirely misunderstood, some of its funnels being, 

 indeed, the only portions of it known, these having been described by 

 the French naturalist Vailhmt, and stated by him to open directly to the 

 exterior. 



I have found that there are a series of ten pairs of these funnels, and 

 that they do not open directly to the exterior, but are connected with a 



M. 



