Mr. Poole on the recent Geological Changes in Somerset. 155 



each of the fifteen Donegal granites, and described the method 

 usually employed by him in solving lithologico-chemical problems, 

 coming to the conclusion that nearly half of these granites are not 

 composed altogether of the four minerals (Quartz, Orthoclase, Oli- 

 goclase, and Black Mica) which are found in them in distinct 

 crystals, and that the remaining varieties, even if they be composed 

 of these minerals, must have a paste composed of the same minerals, 

 but with a slightly different composition. Prof. Haughton then dis- 

 cussed the composition of the syenites of Donegal, and instituted a 

 comparison between the granites of that district and those of Scotland 

 and Sweden, remarking that those of the last-named region have the 

 same stratified structure as the granites of Donegal. 



3. " On the recent Earthquake at Manila." By J. W. Farren, 

 Esq. Communicated by the Foreign Office. 



In two letters to Earl Russell the author described the damage 

 done by this earthquake, observing that 289 persons were killed, 

 and a large number more or less injured. 



4. " Extracts from letters relating to the further discovery of 

 Fossil Teeth and Bones of Reptiles in Central India." By the late 

 Rev. S. Hislop. Communicated by Prof. T. Rupert Jones, F.G.S. 



The remains alluded to consist of (1) a series of Reptilian bones, 

 some bearing teeth, mostly Labyrinthodont, and some probably 

 Dicynodont, from the (Triassic ?) red clay of Maledi, in which teeth 

 of Ceratodus occur; and (2) several teeth similar to one from the 

 Eocene clays of Takli, near Nagpore, and another like a conical 

 tooth from the Eocene beds (with Physa Prinsepii) of Physura, from 

 the same neighbourhood as that in which the set No. 1 was found. 



At Phisdura (Tertiary), large Reptilian bones (including a femur 

 1 foot across at the condyles, and a vertebral centrum 7 inches 

 across) have been found associated with large coprolites, Physa 

 Prinsepii, and Paludina Deccanensis. 



Mr. Hislop stated his belief that the Mangali beds, the Korhadi 

 shales, and the red clay of Malerfi, should be placed above the 

 plant-bearing beds of Nagpore instead of below them, as heretofore 

 supposed. 



January 6, 1864. — Professor A. C. Ramsay, President, 

 in the Chair. 



The following communications were read : — 



1. "On the recent Geological Changes in Somerset, and their 

 date relatively to the Existence of Man and of certain of the 

 Extinct Mammalia." By G. S. I'oole, Esq. 



In describing the general physical features of the district treated 

 of, which lies between Clevedon and Taunton, the author noticed 

 especially the embankments which protect the land from periodical 

 inundations, stating his belief that they were constructed by the 

 Romans ; he also described the " turbaries " or peat-moors, en- 

 deavouring to explain their mode of formation, and noticing their 



