221 



the brain, having the whole thickness of the integumentary 

 structures intervening between them and the external world. 

 They consist of a spherical lens, imbedded in the anterior 

 extremity of a pigment cup, which is penetrated posteriorly 

 by the very short optic nerve, and the whole surrounded by a 

 delicate capsule. 



The auditory capsules, with their otolites, are easily de- 

 monstrable. 



The generative apparatus is complex. It is hermaphro- 

 dite ; the male organs consist of testis vas deferens and penis, 

 and the female of ovary, oveduct, uterus (?), and certain acces- 

 sory glands. 



The President appointed, under his hand and seal, the fol- 

 lowing Vice-Presidents : 



George Petrie, Esq. 



Captain Larcom, R. E. 



Sir William R. Hamilton, LL.D. 



Rev. Franc Sadleir, D.D., Provost. 



DONATIONS. 



Famine and Fever in Ireland. By J. Corrigan, M.D. 

 Presented by the Author. 



Annual Report of the Leeds Philosophical Society, for 

 1844-5. Presented by the Society. 



London University Calendar, for 1846. Presented by the 

 University. 



Memoirs of the Astronomical Society. Vol. XV. Pro- 

 ceedings of the Royal Astronomical Society, from Novem- 

 ber %th, 1844, to January 9th, 1846. Presented by the 

 Society. 



Journal of the Asiatic Society of Bengal. Nos. 75 and 

 76 (for 1845). Presented by the Society. 



Transactions of the Linnean Society of London. 

 Vol. XIX. P. 4. Proceedings of the Linnean Society of 



