Occurrence of Boulder Clay at Huddersfield. 223 



Beck. Before excavations commenced, suspicious-looking 

 deposits were exposed in the natural sections of the left bank 

 of Lees Beck, where a bed of ' gravel ' was seen resting upon 

 a high bank of black faulted shale ; one section showed this 

 deposit filling a V-shaped hollow, ploughed out of the shale, 

 ten feet or more above the stream bed. 



Higher up on the. spur good sections of this deposit were 



% 



Fig. 3.— Pipe track from Lees Beck to Dalton Gardens 

 Reservoir, showing boulder clay. 



exposed in excavating for the foundations of the works labora- 

 tory. This proved to be stiff yellowish clay merging into a 

 sandy clay, with both water-worn and angular stones of all 

 shapes and sizes, indiscriminately embedded in it. Frequent 

 globular pockets occurred, filled with fragments of shale and 

 coal, the filling material readily crumbling away, leaving a 

 smooth lining with a greyish white incrustation. 



This deposit covers the end of the spur, and can be traced 

 in a southerly direction (up stream) to Sand Ings, nearly 



1917 July 1. 



