752 
Report on the Exhibition of Implements, 
such machines as were shown. The public were much indebted 
to jNIr. VV. Trethewy, of Grampound, Cornwall, for the sight of 
probably one of the first steam engines, if not the very first, ever 
used for farm work ; and the interest was further increased by the 
fact of its being shown in work. This engine was invented by 
the celebrated engineer Richard Trevithick, of Hayle, and was 
Fig. 45. — View of Trevithick! s Steam-engine. 
made for Sir Christopher Hawkins, Bart., in 1811, and fixed on 
his Home Farm, Trewithan Probus, Cornwall, for threshing 
corn, &c. It cost originally 80/., and has been in use ever 
since. Up to the time of the exhibition it was the property of 
C. H. T. Hawkins, Esq., of Trewithan, the nephew of the 
original proprietor ; but I am very happy to say that it has 
been purchased by the Commissioners of Patents, to be pre- 
served at South Kensington. The engine was worked at Kil- 
burn by compressed air supplied into the boiler, the air 
being compressed by one of Sturgeon's patent air-compressors, 
kindly lent for the purpose by Messrs. Clayton and Venables. 
