CALCAREOUS MANURES— APPENDIX. 23S 



Htter, &.C., and mixing witli them ; so that I can nearly, or quite, now, accom- 

 plish making farm-yard and this kind ot manure, sufficient to go over my wiioie hundred 

 acres, annually. For the two last years, I have made more manure than I could accom- 

 plish or effect carrying out, though I have manured iVom ten to twenty acres more than 

 my hundred, each year, with part marl and part farm-yard, but not the whole witli both, 

 as I hope to be able to do in future ; but it will be "necessary to increase my carting force 

 to eftect it, and I clearly see I can raise suflicient manure for the purpose ; heretofore I 

 have manured my corn-ground, lifty acres, wilh mail, and my fallow with part farmyard 

 manure, and part marl, as mentioned before ; so that you will perceive the improvement 

 made on my soil has not been effected by marl alone, but in conjunction with farm-yard 

 manure, clover and plaster, and by making it a point to manure with something all the 

 ground I put into cultivation ; so that every time I cultivated a field, tliat field was im- 

 proved, and not in any degree impoverished by the cultivation. Ey this means, and the 

 Divine assistance, I have effected that improvement of myjarm, which is so very strike 

 ing to tlie observation of every person acquainted with it. * * * 



•' In August, IS05, in digging down a bank on the side of a cove, for the purpose of 

 making a causeway, I observed a shelly appearance, which it struck me might irriprove 

 clay soil ; I took some of it immediately to the house, and putting it into a glass, with 

 vinegar, found it clfervesced very much ; this determined me to tiy it as a manure ; 

 accordingly, in September, I carted out about eighty cart loads, and put it on a piece of 

 ground, fallow, preparing for wheat, trying it in different propoitions, at the rats of from 

 twen!y-seven to about a hundred loads per acre, and the ground was sown in wheat. I 

 could not, myself, be satisfied that tliere v,'as any difference througli the winter and 

 spring, although Geneial Lloyd, who was viewing it with me in the spring, tliought he 

 could perceive some difference in favor of the marl ; but at harvest time, the wheat, 

 though not more luxuriant ingrowth, or better head, was considerably thicker on the 

 ground ; and after the wheat was taken off, the ground where the marl liad been put 

 was set with white clover, no clover being on the ground on either side of it. The next 

 year, 1806, I discovered it in the drain into the head of the cove, which I immediately 

 ditched, and from the ditch put out seven hundred loads, on the fallow ground. The 

 effect, as to the wheat and clover, was the same, (this was put, for experiment, at the 

 rate of from forty to a hundred and twenty cart-loads per acre,) though the marl was not 

 of the same kind as the other, but more mixed with sand and surface soil, being taken 

 from the low ground, by ditching, and all mixed together. I also tried it on corn ground, 

 spread out as above mentioned, and found the effect immediate, as to the corn ; and in 

 the same manner as above described, as to the wheat sown on the corn ground. This 

 induced me to persevere in the use of it, which I have done ever since, adopting the 

 mode I mentioned before, and putting it at first from forty to seventy loads per acre, till 

 1 have now come down as low as eighteen or twenty loads per acre, going the third time 

 over the ground wilh it. * • » • • «. • 



NOTE VI. 



FIRST VIEWS WHICH LED TO M.tRLlNG IN PRIXCE GEORGE COUNTY. 



(From the Fanners'' Register, Nov., 1839.) 



Among the persons who have fead with interest tlie 'Ilssay on Calcareous 

 Manures' and have received as sound the novel theory and doctrines there 

 maintained, several Iiave expressed their curiosity which had been excited 

 to learn the earliest facts, or the train of reasoning-, wliich led to the sug- 

 gestion of the cause of the defect of naturally barren soils, and the remedy. 

 Such inquiries have been made of the writer by persons of investigating 

 and well informed minds, but of very different education and pursuits; and 

 they were pleased to say, in regard to the concise verbal answers made 

 to their inquiries, that they deemed the details likely to be interesting to 

 many, and that if given to the public, they might serve better to induce the 

 consideration and enforcement of the doctrines, than had been done by the 

 mere arguments which had been already |)ublished, convincing as they con- 

 sidered the arguments to be. 



