312 INDEX. 



Teeth, the, one of a class of non-vascular animal tissues, 185. 



Thin plates, on the phenomena of, of solid and fluid substances exposed to polarized light, 43. 



ToYNBEE (Joseph, Esq.). Researches tending to prove the non-vascularity and peculiar uniform 

 mode of organization and nutrition of certain animal tissues, viz. articular cartilage, and the 

 cartilage of different classes of fibro-cartilage ; the cornea, the crystalline lens, and the vitre- 

 ous humour; and the epidermoid appendages, 159. 



Turtles, on the fossil remains of, discovered in the chalk formation of the south-east of England, 

 153. 



U. 



Uterus, on the nervous ganglia of the, 269. 



V. 



Vitreous humour, the, a non-vascular animal tissue, 178. Structure of the, 184. The vessels of 

 the, ibid. 



W. 



Work of a machine, 285. 



LONDON: 

 PRINTED BY RICHARD AND JOHN t. TAYLOR, 



RED LION COURT, FI-EET STREET. 



