JE^periments on Manures. 71 



and other vegetables. Some of the fwamps have a foil, or fort 

 of manure, fome feet deep, and yield great quantities of good 

 manure for wheat: Although the fwamp be rich, and will 

 produce extraordinary crops, yet the advantage of carting it 

 away on poor land far exceeds any profit you can otherwjfe 

 make from it. By carting it into heaps, and letting it lie 

 cxpofed to the frofts during the winter, it becomes mellow, 

 and in many inftances is found nearly equal to yard-dung. 

 Some fwamps, to appearance, look well, and promife to be 

 good manure, when, on experiment, they prove ufelefs. I 



know not of any way to determine without experiment which 



may be done at a very fmall expence. 



The Manure of Leached Aflics. 



The manure of leached afhes has been much ufed on Loncr_ 



o 



Idand, and in Connefticut, near the fea coafts, and is found 

 to fucceed beft on dry loamy lands, or loam mixed with fand. 

 Jt is generally purchafcd on the North river, and on Connedi- 

 c\A river ; it cofts, at the eafl end of the ifland, nine fliillings 

 for forty bulhels, or one cart load, and is then carted by many 

 farmers fix and feven miles, to put on land as manure, and 

 cofts them fixteen fhillings per load, including the carting . 

 and yet the effefts of it are fo great and laftincr, it has been 

 confidered as the cheapeft manure you could procure. Of 

 late years, the demand for afhes has been fo great, by being 

 more ufed than formerly, that it is difficult for farmers on the 

 fea coaft to fupply themfelves with it in any confiderable 



