328 0?i the Cultivation and Manufacture of Woad. 



The Committee of Management should require the Nail^ 

 sea colUers to put their works in such a state and condition, 

 as to insure the working of 500 tons of coals per day at the 

 least, as a sort of guarantee to the canal proprietors for the 

 risk of laying out immediately about 100,000/. 



Messrs. Grace and Co.'s Colliery is heavily loaded with 

 water, and by pricking additional feeders it would be drowned 

 out; another Engine should be put up, to place them on a 

 tolerable certainty. White's Colliery seems to be better off 

 in regard to water, and a new engine of considerable power 

 is erecting on the deep work. 



At Teague's Colliery very little water has hitherto been 

 met with, but in sinking deeper aud in extending the work 

 in every direction, feeders of water will surely be pricked, 

 and that collierv cannot be considered out of danger till ft 

 fire engine is erected upon it. 



The proposed collieries on Kenn-Moor, on Nailsea-Moor, 

 and also on the lands of Sir Abraham Elton, Bart., to the 

 southward of Clevedon church, should be opened. 



As to the Prospect of Collieries from Clevedon Hill to 

 Morgan's Pill. 

 A colliery was some years ago worked at Clapton, near 

 the church, by virtue of a level which was brought up from 

 the low grounds. The last pit upon the level head, was, I 

 heard, nearly 40 fathoms deep, and the main vein when left 

 was full six feet in thickness. Why it was abandoned, I 

 know not; and coal strata appear all along from Clapton 

 church to Portbury church, where sundry veins of coal I 

 have no doubt exist. A canal once opened into that vici- 

 nity, will certainly prompt persons to open those collieries, 

 and with a fair prospect of success, after a canal is made 

 ready to their hands. 



(Signed) Edward Martin, Colliery Surveyor. 



Morriston, near Swansea, July 31, 181 1. 



LX. On the Cultivation and Mamfacture of IFoad. In 

 a Letter to the President of the Bath and IVest of Eng- 

 land Agricultural Society. By Mr. John Parrish*. 



VV OAD is a plant which, combined with indigo, gives 

 the best and most permanent blue dye hitherto discovered. 

 It is of great importance to our connnercc, as well as to 

 agriculture, being in nature one of the best preparers of 



* Froin vol. xit. of the Society's Letters and Papers. 



land 



