374 ANNUAL R.EGISTER, 1800. 



St. Bartholomew's; and is under 

 trial at several others. Still farther 

 to inform myself of the public opi- 

 nion, I lately requested an inter- 

 view with a numerous and most 

 respectable committee, at Apothe- 

 caries Hall ; it is impossible, with- 

 out a breach of propriety, to repeat 

 the compliments its meuibers were 

 pleased to pay me. Whether I de- 

 serve them or not, it would be 

 equally improper in me to deter- 

 mine ; but of this the society may 

 be assured, I never will rest till I 

 do. In a word, my purpose was 

 fully answered. The article which 

 I exhibited met with the most un- 

 qualified approbation, and full per- 

 mission was given to publish this 

 circumstance. I beg leave, before 

 I conclude, to apologize for the 

 egotism which prevails throughout 

 this communication. It is scarcely 

 possible to avoid it, when, in cases 

 like the present, a man is under the 

 necessity of speaking of himself. 



It is a subject I have much at 

 heart, and it would give me much 

 real concern to keep back a single 

 circumstance likely to be useful to 

 future adventurers. Its production 

 and adoption, with the attendant 

 difficulties, have been to the best 

 of my abilities amply considered ; 

 the former in the communications 

 before-mentioned, the latter in this 

 paper. If the society are of opi- 

 nion that the steps I am pursuing to 

 effect this last and desirable purpose 

 deserve success, it will be highly 

 flattering. Under their auspices I 

 commenced my plantation eight 

 years ago, and I hope and trust my 

 proceedings since have been such 

 that the purpose to which it has 

 been appropriated will occasion no 

 regret. 



I am, sii'. 

 Your very humble servant, 

 Thomas Jones. 

 No, 13, Fish-street-hill. 



Extract from a Memoir containing some Researches respecting the Dura- 

 tion of the Time of Gestation in the Females of different Animals. By 

 M. Tessier. Read at the National Institute. 



THE author first takes notice of the discussions which took place about 

 twent}"^ years ago, among physiologists, respecting the possibility of 

 the time of gestation being prolonged beyond the usual term. Bouvard 

 and Louis maintained, in opposition to Berlin and Petit, that the time 

 of gestation in animals was invariable. But the fact was not ascertained ; 

 on which account M. Tessier resolved to investigate the subject, and for 

 that purpose established a correspondence concerning it, and kept very 

 exact journals of every circumstance that could tend to elucidate the 

 matter. The result of his inquiries, which he offers to the National 

 Institute, is as follows. 



I. Cows. 

 One hundred and sixty cows were observed. 

 M calved from the 241st to the 266 day, that is, from 8 months and I 

 day to 8 months and 26 days, 



3 on the 270th day. 



50 from the 270lh to the 280th day. 



