MEMOIRS AND COMMUNICATIONS 
READ TO THE SOCIETY IN 1826. 
Jan. 10th.—On the Probable antiquity of the Porch 
of St. Margaret’s Church, York, by John Browne, artist: 
(communicated by Rich* Drake , Esq . M* Y* P . S.) 
Feb. 7th.—Analysis of limestones from Huddleston and 
Fairburn, by E. S. George, F. L. S. Hon. Mem. Y. P. S. 
Account of the discovery of oxide of chrome in the orange 
phosphate of lead, and of manganese in the green phosphate ; 
by the Rev. W. Y. Vernon, F.R.S. Pres. Y.P.S. 
March 7th. — On the mountain limestone and coal series of 
Northumberland, by the Rev. C. V. Vernon, M. Y.P. S. 
April 4th.—On the Geology of the district around Cave, 
by the Rev. W. V. Vernon, F.R.S. Pres. Y.P.S. (illus¬ 
trated by a map and drawings , by J* Phillips , Hon* Mem . 
Y.P.S*) 
Account of entomological Systems and Authors, by P. W. 
Watson, F.L. S. Hon. Mem. Y.P. S. 
July 4th.—On the course and appearances of the great 
whin-dyke, and the position of the red marl and sandstone, in 
Cleveland ; by the Rev. Leveson V. Vernon, M. Y.P. S. 
Letter to the President, on the botanical characters and 
