416 
Sleani Culture. 
&c., some of these are very durable ; other small fittings, such as 
india-rubber springs, are the reverse ; some are open to im- 
provements and changes ; and some well established. A less rate 
than 20 per cent, on 189/. (about 38/.) can hardly be assigned 
to the interest, repairs, and depreciation of these auxiliaries. 
Lastly, we have about 100/. for a plough, shares, mouldboard, 
prongs, &c. Under this head 5/. will be required for interest ; 
probably not less than 51. for new breasts, shares, prongs, 6cc., and 
5 per cent, for depreciation. 
Thus the steam cultivation would be charged : — 
£. s. d. 
For steam-engine (2-3rds of full season) .. 70 0 0 
Hope .. 40 0 0 
Tackle 38 0 0 
Implements 15 0 0 
£1G3 0 0 
To levy this charge it must be assessed upon — 
£. s. a. 
100 clays at the rate of about 1 12 0 
The labour of men and horses, coals, oil, &c., has been 
valued at 1 8 0 
£3 0 0 
And we thus arrive at a total charge of 3/. for a day's work. 
In this scheme some may think the steam-engine highly 
charged. I have given my reason why, on the very scanty in- 
formation now before us, it can hardly be set lower. On loams, 
the charge of the engine may perhaps be reduced, because there 
its powers will not be so severely taxed ; but, on the other hand, 
the cost of the rope may there be in excess of our estimate. 
A charge of 1/. 12^. is at a lower rate, too, on such a steam- 
cultivator than that of 1/. per day — the sum I should charge my 
own farm as owner — for a threshing apparatus. 
Thus I have ventured to raise the charge for the use of 
Fowler's machinery 50 per cent, on former estimates of writers, 
yet 1 am confident that, if these calculations are sound, so far as 
they go, they will promote the employment of this agent, be- 
cause so powerful an implement when in its right place, if 
charged 3Z. per day, will easily earn more than 5/. 
In the case of a 10-horse power engine the annual cost might 
probably be reduced 23/., chiefly on account of the diminished 
cost of the rope and strain of the engine ; leaving 140/. to be 
charged on 100 days at the rate of 1/. 85. per day. 
Smitlis Cultivato7\ — Mr. Smith's apparatus consists of 8-horse 
power engine, 255/. ; rope, 1400 yards, 61/. ; windlass, anchors, 
snatchblocks, rollers, (Sec, 135/. ; turning bow, 21/. ; No. 3 
cultivator, 16/. ; No. 4 cultivator, 17/. : the whole costing 505/. 
