50 AGRICULTURAL ENGINES. 



to me for working repairs within four years, I will refund the 

 whole of the sum I am to receive for it. I will take particular 

 care to mark every part and send you a full description. 



" Enclosed I send you a sketch of the engine attached to a 

 sugar-mill. Please write to me by return of the packet ; it may 

 be in time, before the engine is shipped, to alter, or send you 

 such things as I may not be acquainted with. I shall be glad 

 to know the number of yards your mules travel in an hour when 

 going at what you call a fair speed, in . the mill, and also what 

 number of rounds you wish the centre roll to make in an hour 

 when worked by the engine. 



" I remain, Sir, 



" Your very humble servant, 



" KD. TREYITHICK. 



" R. W. PICKWOOD, Esq., 



" St. Kitts, West Indies." 



These are not the remarks of an uncertain schemer ; 

 every sentence having the impress of the ability and 

 fixed intention of perfecting the work, and the belief 

 that the simplicity of the engine would enable a common 

 labourer to use it. 



[Rough draft.] 



" SlE CH. HAWKINS, Bart,, " CAMBORNE, 5th July, 1812. 



" Sir, If your friend Mr. Trecothick intends to have a 

 sugar-mill engine immediately finished and sent out with the 

 one I am now making for Mr. Pickwood, he ought not to lose 

 any time in giving his orders. I have made inquiry at Fal- 

 mouth about sending out Mr. Pickwood's engine for St. Kitts 

 on board a packet, which would save much time, but I fear it 

 cannot be granted unless application is made by some person 

 of note to the Post Office in London. Mr. Banfield of Falmouth 

 told me that if application was made to send out a model as a 

 trial, he had no doubt but it would be granted. 



" This experiment with the portable engine that will travel 

 from one plantation to another and work without condensing 

 water, is certainly of the greatest consequence to the planters, 



