282 REPOIJTS. 



located, but doubtless exists at tlie base of the Houniet hill. 

 The wliole plain has evidently been under tlie sea. Blue clay 

 has been found in places. This clay is probably derived from 

 the decomposition of veins of close-<>- rained dioi'ite, whi(di 

 must luiA^e taken place under water or an impervious covei'ing 

 (since removed by denudation). The process of decomposi- 

 tion of the diorite into clay, may be seen going on at the 

 present time in Perelle Bay. As these veins of diorite are 

 associated Avith the blue diorite of which the llonmet hill is 

 composed, and not Avith the C'obo and Grandes lioc'[iies 

 granite, it may be inferred that the former is the rock 

 formation Avhich underlies the [)lain aboA^e referred to. 



Van vert Scl tools. 



A considerable depth of yellow earth or loamy clay rest- 

 ing on decomposed diorite Avas found on the site of these 

 schools. The de])th is slight in the upper part of the field, 

 but increases rapidly towards Vauvert Valley. 



C. G. De La Make, Sec. Geol. Sect. 

 Report of Section for Marine Zoology. 



During the ]jast year some good work has been done in 

 this branch of our Society, more particularly by some of the 

 younger members. The systematic and painstaking Avork of 

 Messrs. E. Sharp and F. Wright is especially deserving of 

 notice. I regret that, for a time at all events, Ave shall lose 

 Mr. E. Sharp's services, as he has left the island. It is 

 sincerely to be hoped that some of the other young members 

 Avill come forAvard to fill his place. 



Research in this field is unfortunately limited by the 

 state of the tide, and cannot be carried on at any time of the 

 day, as can the Avork in the other sections, consequently some 

 members Avho Avoidd be Avilling to undertake regidar Avork on 

 the seashore find it impossible to get aAvay at the right time, 

 for the best period invariably occurs in the middle of the day. 

 Besides this there comes a time in most persons' lives Avlien 

 they commence to find it increasingly difficult to squeeze 

 themselves into fissures in the rocks not much more than a 

 foot AA^de. It is therefore all the more incumbent on those 

 members Avho can to devote as much time as possible to it 

 Avhile they are able. 



For younger members, Avho do not mind " roughing it " a 

 little, Marine Zoology offers not only a most healthy and 

 interesting recreation, but also a field unequalled by any of 



