VARIOUS INVENTIONS. 29 



now engines with horizontal cylinders at work above ten years, 

 and find them answer equally as well as a perpendicular 

 cylinder. 



" I remain, Sir, 



" Your very humble servant, 



" BICHD. TKEVITHICK. 

 " JAS. GREEN, Esq., Exeter." 



Engineers nowaday are not in the habit of designing 

 and constructing a steam-engine in six weeks, or willing 

 to alter the agreed form from the horizontal to the ver- 

 tical without charge. 



[Rough draft.] 



" Mr. Robert Fox, jun., informed me the other day that you 

 had the sole direction of the work at Plymouth. Had I known 

 it at the time you were at Scorier I should have communicated 

 to you my ideas relating to the application of machinery there ; 

 but until a few days since I had an idea that the young Mr. Fox 

 was about to take an active part in the management, which I 

 now find was never his intention, only he very much wishes to 

 have an experiment tried to see to what extent an engine was 

 capable of performing as against men. An engine is now pre- 

 paring for that purpose." 



" CAMBORNE, February 24:th, 1813. 

 " On my return from Padstow this evening, where I have 

 been for the last fortnight, I found your letter of the llth inst. 

 respecting the getting an apparatus ready for the Plymouth 

 undertaking. Before I set about it I wish to see you and 

 Mr. Fox, and will call any day you may appoint. Waiting your 

 reply, 



" I remain, Sir, 



" Your very humble servant, 



" E. TREVITHICK. 



" MR. ROBERT Fox, Jun., Falmouth" 



After three months of experimental scheming, with- 

 out a thought of keeping his inventions secret, Trevi- 



