17G ON THE USE OF 



Ml". Pocock, of Hicldey, iised the mamire at tlie rate of 

 4 bushels per acre, and one-third acid, and was well pleased 

 with the result, thoug-h he did not ascertain its amount. 



Mr. Withers, of Luzborough, was another farmer to whom 

 I furnished a quantity, prepared as before mentioned, and 

 he reports very favourably of the result. 



Mr. Fielder, of Sparsholt, was induced by my representa- 

 tion of its favourable eftects to try the manure, and he 

 found that on his lig'ht land on the chalk it answered ad- 

 mirably. Two bushels of vitriolized bones with ashes suc- 

 cessfully rivalled a small portion of ground drilled at the 

 rate of GO bushels of bones to the acre for the purpose of ex- 

 periment. 



Although the vitriolized bone has proved very successful 

 with white turnips, I believe that its peculiar excellences 

 are most fully proved by Swedes. I wished to ascertain this 

 by experiment ; and accordingly, on the same day and on 

 similar land, a clay loam, 3 acres Avere drilled with Laiug" 

 Swedes, and 3 acres with Matson's white globes after tares. 

 The Swedes proved decidedly superior both in the early and 

 later stag-es, and thoug'h the roots, as mio'ht have been 

 anticipated, were but of moderate size, in consequence of 

 the very late time of drilling (early in August), yet on com- 

 paring a few rods withoiit manure the difterence was very 

 striking. A small portion of the globes, drilled with ashes 

 alone, also exhibited a similar inferiority. 



It should be observed, however, that in this experiment 

 the land was probably more suited for Swedes than white 

 turnips ; but, on the other hand, the lateness of the season 

 was more imfavourable to the Swedes, besides which the 

 crop previous to the globes had been manured with stable- 

 dung, whilst the other field had received no dressing since 

 1843. 



Supposing that these results are to be attributed to the 

 greater suitability of the manure for Swede, and not owing 

 to other causes, the result is certainly in keeping with the 

 comparative analysis of the ashes of Swedes and white tur- 

 nips, which tells us that the former contains 408 lb. of phos- 

 phoric acid, and the latter only 73 lb. in 100,000 lb. each. 



It must be evident from this circumstance that white 

 turnips do not require so large a quantity of bones, whether 

 vitriolized or not, and it also corresponds with the well 

 known facts that Swedes require a larger quantity of dung- 

 to supply the necessary phosphoric acid, and also that white 



