r)2 



TRACTS ON VARIOUS SUBJECTS, &c. 



TABLE I. — Exhibiting the Produce in Leaves of 269 Plants of Mangel 

 Wurzel at Plantation-house Garden, from Seed soiim on the "^d January, 

 transplanted on the Qth February, and manured on the 2\st June 1809. 



The plants were placed in rows, two feet asunder, in a blackish 

 stiff soil ; and at the distance of one foot in the rows. An acre 

 planted in this manner would contain 21780 plants ; 48 plants 

 are tlierefore very nearly (as entered in the Table) the 454th part 

 of an acre ; because 48 x 454 = 21792. In the same manner the 

 other proportions are deduced. 



Oi>>;erving the protiuce in leaves had diminished at the last 

 three cuttings, and that they had also been much infested with 

 caterpillars since ihey began to decline, I had the roots taken 

 up on the 17th Jauuary 1811. From the 22d November to that 

 time the growth of the leaves was inconsiderable ; they were. 



