Account: of a Field Tliorov fjh-drained. 21 



After the field had been dramed upon Mr. Smith's plan, or nearly so 

 (the principal difference being that the whole of the drains had drain- 

 tiles placed therein, and Mr. Smith only names the main and sub-main 

 to have drain-tiles), it was then limed with 4 tons of good lime per 

 acre; then it was ridged up ; afterwards the ridges were split or opened 

 with a plough, and rotten dung placed within the ridge or spht : it was 

 immediately moulded up into ridge again, and the seed drilled on the 

 ridge directly over the dung, so that the seed had the full benefit of the 

 dung at the first stage of vegetation. 



I believe I can confidently state that the crop of turnips, after the 

 above treatment, was four times the quantity in weight ever produced 

 in the same field at any previous time. 



As to the quantity and the quality of the manure used, the manure 

 was good town-made stable manure and your own good farm-yard dung, 

 mixed ; the proportion used was 12 tons per acre. 



The best crop (27 tons per acre) was the Hertfordshire White : sown 

 21st of June. 



The second best (26 tons) was Mr. Skirving's Red Giant : sown 

 23rd of June. 



The next best was the Red Top : sown 24th of June : about 16 tons. 



The next best the White Globe : sown 25th of June : about 16 tons. 



The whole of the seed was from Mr. Skirving, of Liverpool ; and 

 2| lbs. of seed per acre was sown ; and the ridges were 24 inches dis- 

 tant from each other. 



No portion of the field was either pared or burned. 



The distance between each drain is 21 feet. The strong clay which 

 was dug out of the drains was spread upon the peaty soil, and was con- 

 sidered almost as good as a dressing of manure. 



Every drain was open throughout before any tile was allowed to be 

 laid ; and the field was almost free from water when the tiles were put 

 in. The field was in a wretched state before, as to wet. 



(Signed) Thomas Hill. 

 The Rt. Hon. Sir Robert PeeL Bart. 



IV. — 0)1 the Connection heticeen Geology and Agriculture in 

 Cornwall, Devon, and West Somerset. By Sir Henry T. 

 De la Beclie^ Director of the Ordnance Geological Survey. 



\_From tiis General Report on the Economic Geology of that district A 



It can scarcely escape the most casual observer^, that the fertility 

 of this district varies most materially, and that very striking con- 

 trasts in the productive character of the soil present themselves 

 to his attention in different parts of it. If he will take a geolo- 

 logical map in his hand and compare this variation in fertility with 

 the colours marked upon it, he will scarcely fail to find that there 



