54 AGRICULTURAL ENGINES. 



long. The fly-wheel will stand across the narrow way of the 

 room. The rope will go up through the floor and the drum be 

 shifted by a screw, horizontally on the barn floor, so as to 

 tighten the rope. I shall put down the top of the boiler level 

 with the surface, with an arched way to the fire and ash-pit 

 underground to prevent the chance of fire, which the farmers 

 are very much afraid of. 



" I send you a sketch showing how it is to stand. I do not 

 bind you to the size of the drum or wheels, only the room that 

 the fly-wheel works in is but 7 feet wide. Pat the engine and 

 drum for Lord de Dunstanville out of hand neat and well, as it 

 will be well paid for, and make the stands, &c., in your own 

 way." 



This description of Lord Dedunstanville's thrashing 

 machine illustrates the drawing of that supplied to Sir 

 Charles Hawkins. 



[Rough draft.] 



" ME. KASTRICK, " CAMBORNE, January 26th, 1813, 



" Sir, I have your favour of the 10th inst., in which you 

 do not state the time when you expect I shall have either of 

 the engines that you are executing. As so much time has 

 elapsed since the orders were given, the persons that ordered 

 them are quite impotent. The ploughing engine that I sent 

 you a drawing for, after being tried for that purpose, was to 

 have been sent to Exeter for pumping water out of the foun- 

 dations of a new bridge; but as they intend to begin their 

 work at the bridge before the end of March, the engine must 

 be there before that time, or they will erect horse machines and 

 not use the engine. I have therefore been obliged to send the 

 small boiler that I had for that purpose to Hayle Foundry, and 

 get the castings made there for this engine to get it in time to 

 prevent losing the order. I have also been obliged to take the 

 small portable engine from Wheal Alfred Mine and have new 

 apparatus fitted to it, to apply this engine for Plymouth Break- 

 water. A small engine, from the same patterns as Sir Charles 

 Hawkins' thrashing engine, which I had at work in a mine, I 



