3o8 PROCEEDINGS COTTESWOLD CLUB 1912 



Commercial Uses. — The sand in this neighbourhood is 

 mainly dug for sale to builders, for making concrete for founda- 

 tions and mortar for building purposes. It is not necessary to 

 wash the sand in any way before using it for mortar-making. 

 At the Tewkesbury Road Pits (Messrs Webb Bros.) it is sold 

 at 1/3 per load. 



The sand dug at the Battledown Brick Works is used 

 solely for mixing with the clay for brick making. 



Alluvium, etc. — As will be seen on reference to the map, 

 a tract in the neighbourhood of the Chelt is represented by a 

 separate colour. This tract is where clayey matter deposited 

 by the Chelt occurs. 



In times past, the Chelt scoured out for itself a course 

 through the sand-bed and has subsequently filled up the broad 

 hollow it thus created with a deposit of gravel, loam and bog, 

 overspread by fine-textured, sometimes sandy, but generally 

 clayey, alluvium. The maximum thickness of this deposit 

 made by the Chelt is probably about 50 feet. 



A good idea of the gravelly loam that participates in the 

 formation of this Chelt deposit was to be obtained in a small 

 pit in the private grounds of Glendouran House, and of the 

 clayey alluvium (quite 10 feet thick) in excavations for houses 

 at the place marked 54 on the map. At the latter locality this 

 clay overlies some 30 to 40 feet of gravel and bog. 



When excavations to receive the foundations of the new 

 retort-house at the Gas Works were being made, an excellent 

 idea was obtained of the nature of the Chelt deposit in this 

 particular neighbourhood. Beds of loam, gravel, soft blue clay 

 (with roots, etc.), yellow clay, dark running sand and bog were 

 encountered, all intermingled in the fashion that one associates 

 with recent river-deposits. 



When the Arle Sewer was being put in near the Sewage 

 Works the relationship of the clayey alluvium to the sand was 

 very clearly shown {vide Proc. Cotteswold Nat. F. C, vol. xvii., 

 pt. I, 1910, p. 56). 



Some difficulty was experienced in obtaining information with 

 regard to the precise nature of the deposits underlying Imperial Square. 

 It has been ascertained, however, that the Queen's Hotel is on 



