55 
zoids, some of which he had mounted for the cabinet. From a pond 
near the Hassock’s Gate Station, in addition to various forms of 
Daphnia, Cyclops, &c., he had obtained young tritons, which exhibited 
the circulation of the blood very beautifully, plenty of Hydra Viridis, 
some of which showed developed young hydra attached to the parent 
and planaria ; on Monday, Mr Sewell and he, upon the occasion of 
going to Lewes to assist at a Conversazione of the Lewes Natural 
History Society, had obtained in the marshes, at Southover, plenty of 
Volvox globator ; on the frog-bit egg masses of different mollusks, some 
of which were so advanced that the young mollusks might be seen 
through the jelly-like substance enclosing them ; a few specimens of 
Hydra fusca and vulgaris, red and other water spiders, &e. ; and that 
afternoon, from a pond in Furze-hill, he had obtained plenty of Volvox 
globator in all stages, several varieties of Daphnia, Cyclops, Pleuroxus, 
Alona, Rotatoriae, &c., as well as Spirogyra and many other minute 
organisms which he had not had time to identify. He had never seen 
a pond so rich in Volvox as the one he had visited that afternoon. 
After a discussion on the nature and generation of Hydra and 
Volvox, in which Messrs. Sewell, Wonfor, Robertson, and Dr. Hallifax 
took part, the meeting became a Conversazione, when 
Mr, Guaisyer exhibited various entomostracs, inclyding Daphnia 
pulex, and D, vetula, planaria, and anguillula, 
Mr. Szwett exhibited volvox globator, cyclops quadricornis, &c. 
Mr Wonfor exhibited Hydra Viridis in different conditions, volvox 
globator in different stages, spiroyyra, Hydrachna, &c, 
Aveust 10TH. 
ORDINARY MEETING.—MR. WONFOR ON “IS BOM- 
BYX CULLUNAE A DISTINCT SPECIES, OR ONLY 
A VARIETY OF BOMBYX QUERCUS ?” 
After describing the differences between moths and butterflies, 
pointing out the peculiarities of the Bombycidae, and minutely des- 
