VOL. XVIII. (2) MEMOIR. MAP OF CHELTENHAM 



133 



Road Station, Cheltenham (dressings of), and of many hundreds 

 of ashlar-fronted houses in Cheltenham. The stone takes a 

 pleasing " egg-shell " polish. The folio w^ing analysis was made 

 by The Royal Institute of PubUc Health in October, 1908 : 



" Trigonyx " is the commercial name in use for the Gry- 

 phite-Grit, which is quarried for roadstone, garden-edging, crazy 

 paths, and rockery work. It is in much request for Alpine 

 Gardens. It takes a fairly high polish, and has been most 

 successfully used for stair-cases and chimney-pieces. A sample 

 submitted to a test fractured slightly at a weight of 884 '2 

 tons to the square foot. 



Stone (Freestone) from this Company's Quarries burns to 

 a very pure lime, as the following analysis made by Mr J. 

 T. Norman of the City Central Laboratory, London, proves. 

 The sample submitted was taken at random from the kilns : 



Gravel. — Gravel, similar to that which occurs below the 

 yellow sand, in the district to the north of the present area, 

 occurs also in this district. It is to be observed in all the 

 tracts coloured green, but is most in evidence on the arable 

 field at Naunton Bank, and in the bank-side by the brook 

 in the picturesque Spring Bottom, Charlton Kings. 



When the reservoir was put in at Southfield Farm, a large 

 quantity of gravel was excavated. Gravel is still worked in 

 a pit near this farm — near (8). 



