505 



peculiar bud, at first undistinguishable from the polypide-bud, but 

 which never develops digestive organs, and is soon seen to be filled 

 with- proper ova, each with its germinal vesicle and germinal spot. 

 This body, may, in accordance with common usage, be called the 

 ovary of the zooid from which it is developed, but since it is pro- 

 duced from this zooid in the manner of a bud, exactly as the poly- 

 pide is, it may itself be fairly viewed as a unisexual zooid, in which 

 the whole organization becomes subservient to the reproductive func- 

 tion, while all the other functions and their special organs become 

 masked and suppressed by the dominant development of the or- 

 ganization destined for generation. 3. Another unisexual bud de- 

 veloped upon the polypide, endowed with a male function and com- 

 monly called the testis, but truly a distinct zooid, with its whole or- 

 ganization rendered subservient, as in the ovary bud, to generation. 

 4. A nonsexual bud of peculiar form (the statoblast) also developed 

 from the polypide. 



The esential features in the reproductive phenomena just enu- 

 merated, present themselves in an indefinitely repeated series, where 

 the first and last terms of each cycle consist in a fecundated ovum, 

 and the intermediate terms in a succession of gemmae. 



4. On the Destructive Distillation of Animal Matters. Part IV. 



By Dr Anderson, Glasgow. 



5. Analysis of Specimens of Ancient British, of Red Indian, 



and of Roman Pottery. By Murray Thomson. 



Ancient British Pottery. 



The specimen of this pottery was found last spring (1856) on the 

 property of William Stirling, Esq. of Keir, along with the remains 

 of a human skeleton, and so broken into fragments as to be of no 

 archoeological value 



The clay, or rather loam, from which this pottery had been made 

 had evidently undergone little or no previous preparation ; the frag- 

 ments were brittle, and had not been highly fired; — in this respect 

 being inferior to the pottery of the Ojibbeway Indians about to be 

 described. The fractured edges of the pieces presented two layers, 

 the outside one of a dun hue, the inner black ; but neither of the 

 surfaces was glazed. Its brittleness rendered this pottery easily 

 reduced to powder, which had a uniform olive-brown colour. 



