[ 90 ] 



THE preceding table is the refult of repeated 

 trials upon light loams, and poor calcareous 

 foils, particularly chalky ones, in the years 1792, 

 ^793' 1794, made by a Gentleman of Kent, 



1 fhall firfl ftate that all the perches were accurately 

 meafured by myfelf, and the contents when fuffi- 

 ciently dry were tied up in bundles, and weighed 

 previous to their being threflied in the field; each 

 parcel of feed was then put in a bag, tallying with 

 the number of the experiment. I mufl: next obferve, 

 that each contrafled perch was taken very near the 

 line of partition, that no difference of the foil might 

 affeft their produfts. As the field was above 100 

 rods long, I ran the experiments in a flraight line 

 throughout, at equal diftances, which enabled me to 

 compare the natural products with each other, and 

 the relative effefts of the gypfum, accorcHng as the 

 flaple of the foil varied: at No. i and 2, the foil 

 was a very light loamy earth, to the depth of three 

 feet on chalk, which kept gradually rifing nearer the 

 furface to the further end, where at No. 7, 8, 9, 

 the furface mould was not more than from two to 

 four inches thick; hence we may naturally account 

 for the produft of No. i, fo far exceeding that of 

 No. 8 ; and it will alfo (hew the immediate as well 

 as permanent effefl of gypfum on the two perches 



7 and 



