504 OBITUAET. 



His earliest published work seems to have been a short pamphlet 

 on the crystalline form of Celestine from Pyle Hill, Bristol, worked 

 out according to Brook's method which was then in vogue. 



During the making of the Great "Western and Bristol and Exeter 

 Eailways, he surveyed the whole of the cuttings between Bath and 

 Bristol, and thence to Taunton, laying down to scafe the whole of 

 the different beds, showing their true dips, thickness, &c., copies of 

 this manuscript section are preserved in the Mining Eecord Office. 



Travellers on the Great Western Railway may notice near one of 

 the tunnels close to this city, a large spherical mass of ferruginous 

 rock placed on a pedestal of masonry ; this was there placed at 

 Mr. Sanders' expense^ he having obtained permission from the 

 engineers to preserve this concretion which came out of the Pennant 

 Sandstone. 



His intimate knowledge of the geology of his native town, was 

 early of use to his fellow citizens. In the Parliamentary enquiry 

 into the health of Towns Commission in relation to visitations of 

 cholera he assisted Sir H. De La Beche, contributing the coloured 

 geological map of Bristol and a horizontal Section through Bristol 

 and Clifton showing the geological structure of the ground on 

 which the city is built. This was printed in the " appendix to the 

 second report of the Royal Commissioners of enquiry into the state 

 of large towns and populous districts," (1844-5,) together with 

 some geological details as is there acknowledged [ilid. Report on 

 Sanitary Condition of Bristol, pp. 8-9.) Subsequently he contri- 

 buted similar matter but somewhat extended, to the '* Report to 

 the General Board of Health on a preliminary enquiry into the 

 sewerage, drainage, and supply of water, and the Sanitary 

 condition of its inhabitants," by G. T. Clark, superintending 

 Inspector for Bristol, (London, 1850.) Por this work four 

 horizontal Sections were run through the town, geologically 

 colored, and the geological map as drawn up by him again added. 



The following papers were contributed by him to meetings of the 

 British Association: — In the year 1840, ''Account of a Raised 

 Sea-beach at "Woodspring Hill, near Bristol." In 1841, *' Kotices 



