AGRICULTURAL ENGINES. 53 



called Foundry House. Trevi thick was sitting with 

 them when the box was brought in and opened. Mr. 

 Henry Harvey was indignant at Mr. Blewett sending a 

 bribe or make-peace to his sister, and threw the silver 

 teapot under the fire-place. Trevithick, however, 

 quietly picked it up, pointed out the dinge it had re- 

 ceived, wrapped his pocket handkerchief around it, 

 and saying, if it causes bad feeling here it will do for 

 Jane, marched away home with the pot. The writer 

 drank tea from it recently, and also laughed at the 

 dinge. 



The following was written to Mr. Eastrick in De- 

 cember, 181 2: 1 - 



" I have been waiting your answer to my last, and especially 

 that part respecting the West India engine, as there is a large 

 field there for engines of this kind. I have received an 

 order for a thrashing engine for Lord de Dunstanville of 

 Tehidy, and as I wish those thrashing engines to be known 

 through the country, I intend to take one of the engines 

 ordered for Padstow and send it to Tehidy ; one of the Padstow 

 farmers can wait until you make another for him ; therefore I 

 would thank you to send the first finished by ship from Bristol 

 for Portreath or Hayle. Send a drum with everything com- 

 plete, of which you are a better judge than I ; probably about 

 3 feet in diameter and 3J feet long will be sufficient. There 

 must be a fly-wheel, with a notch to carry the rope, and also a 

 small notch wheel on the drum-axle. I think 6J feet diameter 

 for the fly and 9J inches diameter for the small wheel, will 

 give speed enough to the drum. Mind to cast a lump or screw 

 on a balance of about 1 cwt. on one side of the wheel. There 

 must be two stands on the boiler, and a crank-axle or otherwise 

 a crank-pin in the fly-wheel, whichever you please ; with a shaft 

 3 feet long with a carriage. The engine to stand in a room 

 under the turn-about, 7J feet high, 7 feet wide, and 17 feet 



See rough draft, Trevithick's letter, 7th December, 1812, chap. xvii. 



