Proceedings. 43 
Afternoon. 
Apr. 24.—Betchworth to Reigate Heath. 
May 22.— Westcot. 
June 26.—Redhill to Merstham. 
July 24.—Mickleham. 
Aug. 21.—Felday and Holmbury Hill. 
Sept. 18.—Upper Gatton. 
The following Officers were elected :— 
President. Mr. W. H. Tyndall, 
Secretary. Mr. A. J. Crosfield. 
Treasurer. Miss Crosfield. 
Curator. Mr. John Linnell. 
Committee. Messrs. J. Bonnor, T. Cooper, J. B. Crosfield, 
F. H. Ellwood, E. 8. Salmon, C. E. Salmon, 
A. Trower, and Miss E. Sargant. 
Dr. Bossey exhibited some fine specimens of Iron Pyrites 
from Reigate Hill; also a flint filled with drift-clay. 
Miss Horne exhibited a specimen of Turkey Oak. 
Mr. Poulter exhibited a rose-leaf cut by a bee. 
Mr. Tyndall exhibited specimens of wood. 
Mr. N. E. Brown lectured on 
Tur NATURALIST DETECTIVE AND HIS ExPLorts In THE NorTH. 
He referred to the discovery ,by Agassiz and others that 
Switzerland had once been covered by ice to the thickness of 
1000 feet. The British Islands, most of Europe, and large 
parts of N. America were similarly covered with ice. At that 
_ time only an arctic flora could survive. 
In the forest-beds of the Mundesley Cliffs, near Cromer, 
below the boulder-clay, stumps occur of Yew, Hazel, Birch, 
Scotch Fir, and Spruce, not in situ, but having drifted. 
