1826.] Ro^al Institution, 67 



Col. Millar respectively, was also announced ; and the Sbclety 

 then adjourned over the long vacation, to meet again on Thurs- 

 day, the 16th of November next. 



PROCEEDINGS OF THE ROYAL INSTITUTION OF GREAT 

 BRITAIN, AT THE FRIDAY-EVENING MEETINGS. 



Mai/ 26. — Dr. Harwood read the second part of his paper on 

 the Elephant genus, his observations being at this time confined 

 to the natural history of the African species, with an account, 

 however, of peculiarities in the structure and in the senses of 

 Elephants generally. The communication was illustrated by a 

 very numerous set of drawings, and specimens, a great number 

 of them from the magnificent collection of Mr. Brookes. 



Several models of ancient buildings were placed on the library 

 tables by Mr. West, the general aspect and appearance of decay 

 being given them by a peculiar method of colouring the sub-' 

 stance, as well as the form of the building. 



June 2.— Mr. S. Solly completed his observations on the 

 porphyry of Christiania. 



A rifle, of a new construction, was laid upon the table, remark- 

 able for its lightness. The length of the barrel was 24 inches, 

 and the weight of the whole only 4^ lbs. It was constructed 

 under the direction of Mr. Leigh. 



June 9. — The subject of the evening was the tunnel atRother- 

 hithe. Its history was given by Mr. Faraday from the lecture- 

 table for Mr. Brunei, and illustrated by numerous tine drawings, 

 models, and apparatus. The undertaking was followed from its 

 commencement to the present time ; the beautiful contrivances 

 of Mr. Brunei explained, the weights and measurements given, 

 and the present condition of the work stated. It has been con- 

 ducted to its present state with the greatest success, and from 

 the experience obtained, there is every reason to anticipate that 

 success will attend it to its conclusion. 



The meetings of the members were then adjourned till next 

 season. 



GEOLOGICAL SOCIETY. 



Ma?/ 19. — A paper, entitled Notes on the Geological Position 

 of some of the Rocks of the NE. of Ireland, by Lieut. Port- 

 lock, Roy. Eng. FGS., was read. 



In this paper, the author alludes to the communications oti 

 the same subject by Dr. Berger, Dr. Buckland, and the Rev. 

 W.D.Conybeare, published in the Geological Transactions; and, 

 after some remarks on the granite and mica-slate rocks of the 

 Mourne Mountains, the Carlingfordj and another groupe occu- 

 pying a large portion of the north of Derry, (the barometrical 



f2 



