Chepstow Beidge Cylinders. 

 (See horizontal section, fig. 3, p. 256.) 



j^ig. 4, — Section in cylinder at B. 



W. 



E. 



Il wo.s.t. 



Grey Sainl 





Pig. 5. — Section in cylinder at A. 



—.E^Co ar_s e_Gnwel with ( red) Cla y.^j^ 





[Scale : 4 feet = 1 inch.] 



