6o6 



IMPROVEMENT OF 



from each other, the rows of wheat or beans will then be fown nuie 

 inches from each other ; and as the wheels of the carriage are four 

 feet in diameter, and therefore travel about twelve feet at each revo- 

 lution ; and as there are four excavations round the axis of the feed- 

 box, which revolve four times for one revolution of the carriage- 



wheels ; it foil 



that the feeds contained in the excavations of 



the cylinder beneath the feed-box w 



h drill or fu 



as th 



e 



1 be fown at nine 

 plough proceeds ; 



iches dif- 

 d as thefe 



'^ 



rows are nine inches afunder, any defired number of feeds may be 

 depofited in every fquare of nine inches, 



which are contained in th 



furface of the field 



6. Mr. Coke of Norfolk acquainted me, that on his very 



five farm the wheat fo 



Rev. Mr. Cook 



d 



cr 



h 



iD 



lly ufed in broad-caft fo 



fited in the d 



n acre was fix or feven pecks by the 

 , which was about half the quantity 

 ^'ing. If the wheat was nicely depo* 



I fufpe£l one bufhel would be quite fufficient for 



an acre. 



the rows are at nine inches diftant from each oth 



for 



there would in that cafe be about eight grains or nine grains dep 



in every nine 



ches of the drill-furrow 



th 



IS 



, in every 



of 



ch 



tained in the furface of the land fo 



fited 

 fquar 



tivated. 



Which may be thus eftimated 

 fophical Tranfaaions, Vol. LVIII. p. 203, has eftimated the iiunv 

 ber of o-rains in a bufhel of wheat to amount to 620,000 ; and Mr, 



.000. We 



Mr. Charles Miller, in the Ph 



Swanwick of Derby has lately eftimated them to be 645 



f 



r 



may fuppofe therefore, 



that a 



bufhel 



may at an average contain 



63^,000 grains of wheat 



Now as a ft 



acre contains 484 



fquare yard 



d th 



are 



fi 



yard, 4840 multiplied by 



fquares of nine inches in every 



which is the 



6 



gives 77,440 



in 



mber of fquares of nine inches in fuch 

 a buftiel be divided by 77,440, the 



If 635 



mber of fq 



of 



inches in an acre, 



th 



quotie 



wi 



ftiew, that rather more th 



ght 



/ 



\ 



