201 



in length, and situate in the aqueous humour, in which it moves about 

 with great activity, but its motions are so constant, that it is difficult 

 to appreciate its exact length. The great size of the anterior cham- 

 ber of the horse's eye, affords it ample space; and through the trans- 

 parent cornea, it can be observed as well as if it were in a glass 

 vessel. The horse was sent up from Calvert county, Maryland. 



Dr. Dunglison made some observations on the difficulty of ac- 

 counting for its presence in this shut sack, and alluded to the different 

 views of distinguished naturalists as to the generation of many of the 

 lower tribes of the animal kingdom, — some presuming that they may 

 be formed spontaneously, whilst others consider that the germs must 

 always be received from without. The difficulty, he observed, ap- 

 plied to all the entozoa that infest the animal body ; and this case 

 was certainly not more difficult of explanation, than that of entozoa 

 found in the intestines of the foetus in utero. 



Dr. Bache referred to a similar case, which was published 

 in an early volume of the Transactions of the Society, (Vol. II. 

 p. 183, by F. Hopkinson, Esq., and Ibid. p. 383, by Dr. Mor- 

 gan.) 



Mr. Walker referred to a letter which he had received from 

 Prof. Loomis, containing two observations of Galle's second 

 comet, and stated, that he (Mr. Walker) had been engaged in 

 deducing the elements of the orbit of the comet, which accord- 

 ed with results of European observers, but did not perfectly 

 correspond with those of Prof. Loomis. 



The following gentlemen were duly elected members of the 

 Society: — 



Paxil Beck Goddard, M. D., of Philadelphia. 



W. H. C. Bartlett, Professor of Natural and Experi- 

 mental Philosophy, West Point. 



Wm. R. Fisher, M. D., of Philadelphia. 



George M. Wharton, of Philadelphia. 



Friedr. Wilhelm Bessel, Director of the Observatory, 

 Konigsberg. 



Rev. Wm. H. Furness, of Philadelphia. 



Captain Francis Beaufort, R. N., Hydrographer to the 

 Admiralty of Great Britain. 



Hartman Kuhn, of Philadelphia. 



George Washington Smith, of Philadelphia. 



