226 Occurrence of Boulder Clay at H udders field. 



Here a section of sandy boulder clay is exposed, and it may 

 be traced over the hill, which is about twenty-one feet above 

 the bed of the stream. The ploughed fields, and also the drains, 

 in the sanatorium grounds, reveal abundant traces of boulder 

 clay, and the constituents examined agree with those found 

 on Briery Bank. It was in this neighbourhood that a horn 

 was found in 1882, supposed to be that of Bos primigenius 

 (see The Naturalist, 1882, p. 150). 



At Mill Hill, the beck receives a tributary from Whitley ; 

 in this, near Rods Mill Dam, at 500-550 feet, boulder clay is 

 again met with and a little further north, near Houses Hill, 



Fig. 6.— Boulder clay resting on a concave bed of Lower 

 Coal Measure shale, Hillbouse. 



it has recently been exposed in several sections at 400-450 

 feet. 



Near Fenay Bridge is another tributary valley drained by 

 the Rushfield Dyke — the Mollicar Valley— and near Fenay Hall 

 and Rushfield, clays and gravels occur which suggest a further 

 extension of this deposit, but satisfactory sections have not 

 yet been exposed and examined. 



Continuing along the main valley, good sections may be 

 seen at the Spa Green Brick Works, Cownes ; and a mile 

 further, opposite the junction with the Woodsome road, the 



Naturalist, 



