n8 



( \)rlu ■// : 1 'orksh ire A f atu ralists 



the Middle and Upper Coal Measures. At the upper part of the 

 section are some much-contorted marls, and above them is 

 again seen the shell-bed of the Lower Magnesian Limestone. 

 This is capped by Boulder Clay containing- well-striated boulders 

 of local rocks and also of Mountain Limestone. 



From the brickworks a move was made towards the Don 

 valley, some curiously weathered blocks of Magnesian Lime- 

 stone in a field on the way coming- in for notice and record by 

 means of Mr. Bingley's camera. From this point the route followed 

 was the same as that taken by the party under Mr. Bayford's 



Lower Magnesian Limestone Escarpment, Conisborough Common : 



Taken during- the Excursion by Mr. Godfrey Bing-ley. 



leadership. The footpath to Doncaster follows the river pretty 

 closely and passes through some beautiful country diversified 

 by wood and rock. In one place a remarkable ridge of hard 

 crystalline rock runs up the side of the valley, and this ridge is 

 very rich in fossils. These consist of the same species as those 

 found in the limestone at the Ashfield section, with the addition 

 of a Retepom. At Warmsworth the limestone has been exten- 

 sively quarried, and good sections were seen and photographed. 

 Some very good examples of the winding of a river through 

 a rocky country were noted, the stream surging from side to 



Naturalist, 



