ON NEWLY CLEARED AND ACID LANDS. 



117 



A 



growth mostly pin'e next in quantity, oaks of different kinds a 

 little of dogwood and cliinquepin whortleberry bushes throughout 

 in plenty. The quality of the soil better than the average of ridge 

 lands in general, but yet quite poor. Judging from experience 

 of adjoining grounds and similar soil, this land would have pro- 

 duced as its early and best crop, and under the best treatment, 

 about 12 bushels of corn to the acre, well ripened and fully shrunk. 

 And if thereafter kept under ordinary culture and management, 

 the products would have gradually and speedily sunk to 5 bushels 

 to the acre. Being still less suitable to wheat, that crop would 

 have been scarcely worth being sown on the land in its best natural 

 state (when the product might be 6 bushels), and certainly not at 

 all after a few years of the usual downward progress. The effects 

 of putrescent manures were very transient, as on all such poor lands. 



Experiment 1. 



The part B C g h, about 11 acres, grubbed and the trees cut 

 down in the winter of 1814-15 suffered to lie three years with 

 most of the wood and brush on it. February, 1818, my earliest 

 application of marl was made on the smaller part B C m I, about 

 2 acres. Marl, containing 33 per cent, of pure calcareous earth, 

 and the balance silicious sand, except a very small proportion of 

 clay ; the shelly matter finely divided. Quantity of marl to the 

 acre, one hundred and twenty-five to two hundred heaped bushels. 

 The whole space B C g li coultered, and planted in its first crop of 

 corn in 1818. This was my earliest experiment of calcareous 

 manures. 



Results. 1818. The corn on the marled land evidently much 

 better supposed difference, forty per cent. 



1819. In wheat. The difference as great, perhaps more so 

 particularly to be remarked from the commencement to the end 

 of the winter, by the marled part preserving a green colour, while 



