126 



ON NEW AND AllD CLAY LANDS. 



measured in a vessel which held (by trial) 1-80 th of a bushel, 

 were as follows : 



On land not marled, 



4 rows, average 5 feet, and 50 in length (500 square feet) 13 

 measures, or to the acre 7i bushels. 



On adjoining marled land, 



4 rows, average 5 feet 1J inches by 50 feet =512 square feet, 

 25f measures, or to the acre 13 bushels. 



4 next rows, 5 feet 4| inches by 50 = 537 square feet, 27 mea- 

 sures, or to the acre 14 bushels. 



1829. In wheat. 



1830. At rest the weeds, a scanty cover. 



1831. In corn. October 20th measured by the chain equal 

 spaces, and gathered and measured their products. The corn not 

 marled was so imperfectly filled, that it was necessary to shell it, 

 for fairly measuring the quantity. The marled parcels, being of 

 good ears generally, were measured as usual, by allowing two 

 heaped measures of ears, for one of grain. 



On land not marled, 



363 square yards made . . . . . 3 gallons, 

 * or to the acre, . . . . . 5 bushels. 



On marled land, close adjoining on one side, 



363 square yards made rather more than 6 gallons to the acre, 

 10 bushels. 363 square yards on another side, made not quite 8 

 gallons, or to the acre, 12 bushels. 



The piece not marled coincided with that measured in 1828, as 

 nearly as their difference of size and shape permitted as did the 

 last named marled piece, with the two of 1828. The last crop 

 was greatly injured by the wettest summer that I have ever known, 

 which has caused the decrease of product exhibited in this experi- 

 ment which will be best seen in this form : 



Product of grain to the acre. 

 1828 October 18. 1831 October 20. 

 Not marled, . 7 bushels 1 peck. . 5 bushels. 

 Marled (average), 13 " 3 . 11 



Experiment 6. 



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