3G0 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



the deposit altogether, has generally encroached upon it, entangling 

 some of its fragments, converting the greater portion of it into a 

 crumbling vesicular rock, or producing mhiiature outliers of amyg- 

 daloid from materials susceptible of the change. 



[Fossils. — As the detailed description of the fossils of this Tertiary 

 formation and of the older Sandstone series will form the subject of 

 Part II. of this Memoir, and be published hereafter, the fossils of 

 the fresh-water deposit are here merely referred to in short. 



From the collections made by Messrs. Hislop and Hunter and 

 their friends from this deposit*, the authors mention the following 

 organic remains : — 



Small bones, probably reptilian. 



Remains of a freshwater tortoise. 



Fish-scales, both Cycloid and Ganoid, in great numbers. 



Insects, found at Takli : Mr. Hunter enumerates about ten species 

 of Coleoptera. 



Entomostracans ; five or six species of Cypris. 



Mollusca, land and freshwater, in great numbers. The following 

 genera are enumerated : — 



Bulimus. Melania. Limnaeus. 



Succinea. Paludina. Unio. 



Physa. Valvata. 



Plant-remains : Mr. Hunter enumerates — 



Fruits and seeds, about fifty species. 

 Leaves, exogenous, six forms. 



, endogenous, three or four. 



Stems, exogenous, few species ; some specimens 6 feet in girth. 



, endogenous. 



Roots, six or seven kinds. 

 Char a y seed-vessels. 



In concluding his notice of the Tertiary insects and plants, Mr. 

 Hunter observes : — 



Before quitting this part of the subject, it may be observed, that 

 it would not be difficult to conceive with some degree of accuracy 

 the nature of the locality in which the fruits grew. Going back to 

 the tertiary epoch, we find Takli part of a lake, extensive enough 

 to be bounded at least on the west and south, and probably on all 

 sides, by the horizon. AYe assume rather than can demonstrate the 

 existence of islands, which break the uniformity of the sea-like 

 expanse of waters. On the higher land of these are forests, mainly 

 of exogenous trees, some approaching 6 feet in girth. More scattered, 

 but yet sufficiently numerous to attract notice, are palms, exhibiting 



* An extensive series of organic remains and of rock-specimens fi*om the super- 

 ficial deposits, the tertiary beds, the fossihferous sandstone and shales, and from 

 the crystalline rocks, has been presented to the Society by the Authors of this 

 memoir. The fossils, however, have not yet been uUy worked out. — Ed. 



