470 Report on the Exhibition and Trials of Iniplementa at Leeds. 
Class I. — Cost of Howard on the Headland of the 8 acres. 
£. s. d. 
Manual labour, interest, &c. iSrc, as before 1 i;5 4 
Coals 052 
Total cost per day £l 18 (! 
Land worked at per day, 2a. Or. 1 4p. 
Vast per acre, 18x. biJ. 
Class I. — Cost of Fowleii's Ap^yaratus on Heavy Land. 
Ploughing. „ , 
£. (1. 
Manual labour, wear and tear, interest, &c., as before 111 o 
Coals consumed per day, 14 cwts., at 20s 0 14 o 
Total cost per day £2 5 0 
I/and ploughed per day, 5a. 3k. — 5'762 acres. 
Cost per acre, 7s. lOd. 
Class I. — Fowler's A/iparatus on Henvij Laiul. 
Scauiiying. £. , 
Manual labour, water, oil, wear and tear, interest, &c.,) j ^ j 
as before / 
Coals, 13 cwts. 3 qrs. 10 lbs., at 20s 01310 
Total cost per day £2 4 10 
Land scarified per day = GA. 1r. = G'25 acres. 
Cost 7s. 2t?. per acre. 
Class I. — Howard's Appai atus on Heavy Land. 
Ploughing. t 
Manual labour, water, oil, wear and tear, interest, &c.,) , , „ . 
, /■ / 1 lo 4 
as beiore ) 
Coals, 7 cwts. I qr., at 2!'s 0 7 3 
Total cost per day £2 0 7 
Land ploughed per day, 2a. 1r. 17p. = 2-4 acres. 
Cost per acre, 1 7<i. 2d. 
Scarifying. 
Labour, &c. &c., as above 113 4 
Coals, 12 cwts. 23 lbs., at 20s 0 12 4 
Total cost per day £2 5 8 
I,and scarified per day, (iA. 3r. 14p. = G'84. 
Cost per acre, tis. 8d. 
We come now to Class II., perhaps the most important class of steam 
cultivators ; for it is higlily desirable that the ordinary agricnltnral enp;iues, 
wl]en of sufficient power, besides thrashing the produce of the Ihrm, sliould be 
available also for the cultivation of its soil. 
We began by allcjtting to each implement SJ acres of a layer of trefoil and 
