HISTOKY OF THE SOCIETY. 
583 
Dr Macdonald read a short account of the Geognosy of 
part of the Point of Cantyre. The Secretary read Dr 
TrailFs Account of the Guanaco of South America, and 
his Description of the Larus Scoresbii ; and also a Trans- 
lation, by the Reverend Principal Baird, from the Chili 
Gazette, of a Report by Senor Levasse, relative to Human 
Fossil Remains discovered in South America. Professor 
Jameson communicated a short paper, by Mr M. Miller, 
on the Increasing Temperature of the Earth as we descend 
in Mines. 
The Secretary read a paper by James Wilson, Esq. on Feb. 22. 
the different Opinions entertained regarding the Specific 
Distinction or the Identity of the Ring-tail and Golden 
Eagles ; likewise a notice from Mr Selby, concerning some 
rare Birds which had occurred on the Coast of Northum- 
berland during the great storm in the beginning of Fe- 
bruary of this year. Professor Jameson then read to the 
Society Observations on the Modes of Formation of Opal, 
Hornstone, and Diamond. 
The Secretary read an account of a new Species of Pi- March 8.- 
geon from New Holland, by Sir William Jardine, Baronet, 
illustrated by a Drawing ; likewise Remarks on the Sertu- 
laria Cuscuta of Ellis, by Dr Fleming ; and a Notice by 
Mr L. Edmondston, in regard to the Ivory Gull and Ice- 
land Gull. Professor Jameson communicated to the So- 
ciety a Register of the Thermometer, Adie^^s Sympiesome- 
ter, and Leslie'^s Hygrometer, kept at Corfu, by Mathew 
Miller, Esq. of the 56th Regiment, with Remarks ; Hke- 
wise a Letter from Mr William Jameson, dated Lima, de- 
scriptive of his Voyage round Cape Horn, and a Chart of 
the Course, laid down in the mode recommended by Capt= 
Basil HalL 
1823. 
Feb. 8. 
