HOWAHTH : N'OTKS (>\ IJOL LDKK MAI!KIN(;S. 
line and harmonises with Mr. Kendall's conclusions (formed 
from much evidence besides boulders) in a very interesting and 
satisfactory way. Special attention is directed to sections VI., 
VII., and IX. of Mr. Kendall's paper in the Quarterly Journal of 
the Geological Society. Vol. LVIII. 
Although, as I have said, many thousands of records ha\'e 
been made, the map is now marked only with such rocks as 
are (1) entirelv foreign to the county, and (2) of types whicli 
are capable of definite identification. 
Mr. Kendall has well described the directions of source of 
boulders as Western." " Northern. " and " Eastern." and 
these terms I accordingly adopt. 
The Western Group. 
(Cumberland and Westmoreland Rocks marked " C and 
" W " respectively on the Map.) 
Rocks from this the " Western " area are widely distributed 
in Yorkshire. They range all along the east coast down into 
Lincolnshire, and inland from tlie coast to elevations of over 
800 feet O.D., and to 30 to 120 feet below the surface in borings 
at North Ormesby, near Tees-mouth. 
They occur spread, over the central plain of the Vale of 
York, from the Tees to Doncaster, abutting against the Hamble- 
ton Hills on the east, and reaching to five miles west of Ripon 
on the west. They occur also plentifully in the valley of the 
Yorkshire Calder from Todmorden to below Wakefield. 
These rocks reached Yorksliire by two principal and widely 
divergent routes. 
Those of the east coast and the Vale of York are traceable 
up the Tees valley to just below Middleton-in-Teesdale. and 
over the pass of Stainmoor (1.800 feet) to Brough in Westmore- 
land. 
Those distributed along the east coast appear to liave passed 
out at Tees-mouth, carried by a glacier having free access to 
the North Sea. Boulders have been dredg(Kl uj) many miles 
from the coast. 
