166 
SKCRETARV's HKPOHT. 
level than 500 feet. Between Harwood Dale Moor and Hayburn 
Wyke six immense rock gorges are cut through a spur of rock, 
five miles in length, and as this great work of erosion was accom- 
plished during so short a distance of retreat, it gives a very striking 
illustration of the length of the Ice Age. Mr. Kendall alluded 
to the excellent work accomplished by Mr. Fox-Strangways 
during his survey of the district, and also to the useful observa- 
tions of Mr. J. W. Stather, of Hull. The paper was then discussed 
and a vote of thanks passed to the reader. 
Monday's excursion was directed to the examination of the 
moorlands between Whitby and Cloughton. The members 
proceeded by wagonette along the Scarborough road to Kirk 
Moor Gate, where they were able to view the channel by whicli 
the overflow from the Robin Hood's Bay area passed into the 
Foulsike Valley. Crossing Sneaton High Moor on foot, two 
notches were seen by which the overflow of the Iburndale Lake 
reached Biller Howe Dale. Thence Biller Howe Slack was tra- 
versed, which cuts across three spurs of the moorland, and marks 
the maximum extension of the ice-sheet in this direction. Cross- 
ing the great Foulsike Valley (Jugger Howe Beck), Brown Rigg 
was examined, and the interesting high-level oxbow behind it 
aroused much interest. The Scarborough road was then re- 
gained by way of Evan Howe Slack, another overflow from 
the Robin Hood's Ba.y lakes. Rejoining the wagonette, the 
party were driven to see Castle Beck, where the drainage from 
the Helwath area i)assed over into Jugger Howe Beck. The 
moraine bordering the Jugger Howe Valle3\ which marks the 
limit of the North Sea ice-sheet, was examined. Proceeding by 
way of the Falcon Inn to Ringing Keld, the party walked to 
Cloughton Moor Cottage, crossing on the way the intakes of 
four successive overflow channels of a lake held up in Thorncy 
Beck Valley during the ice-sheet, and the return was made by 
wagonette to Whitby. 
After dinner the Rev. E. Maule Cole. M.A.. F.G.S., gave an 
address on the " Prehistoric Entrenchments on the Wolds." 
^^•llicll was followed by an interesting conversation. Votes of 
