SECRETARY'S REPORT. 43 



The tabic is tlms arranged. The columns arc numltered 

 by figures placed at thp head of each. The 1st contains 

 the numbers ap[)licd to each experiment. The 2d, the 

 name.s and residence of the experimenters. 3d, the num- 

 ber of square rods of land covered by each experiment. 

 4th, the quality and condition of the soil. 5th, its condi- 

 tion previously to the commencement of the experiment. 

 6th, the number of cords per acre of manure used, and its 

 quality and condition in 1860. 7th, the depth of the first 

 ploughing, in inches. 8th, date of planting. 9th, the kind of 

 seed. 



In columns 10 to 14, inclusive, the condition of the weather 

 for each of the months. May, June, July, August, and Sep- 

 tember, 1860, is shown. The upper term corresponding to the 

 first third of the month, the middle term to the middle third, 

 and the lower term to the last third. Column 15 gives the con- 

 dition in which the crop was weighed. 16 to 20, inclusive, 

 contain the weights of the several products, calculated in 

 pounds per acre. The upper figures in each division applying 

 to the principal product, and the lower, if any, to the secondary. 

 The middle figures in two instances exhibit the quantity of 

 unsound corn. The numbers at the top of these last five columns, 

 correspond to the numbers of the plots in the experiments. 

 Column 21st, gives tlie depth to which the ground was ploughed, 

 in preparation for the crop of 1861. The 22d shows the con- 

 dition of the crop, or its character, as weighed. 23 to 27, 

 inclusive, give the weights per acre on each of the five plots, 

 as in the previous year. 28 gives the crop of 1862. 29 to 33, 

 inclusive, show the weights per acre on each plot, us in the 

 two former years. No. 34 serves to explain those which follow. 

 The upper figures in each division of column 35, give the 

 increased value of product per acre during the three years by 

 reason of manure on plot No. 1. 



The product of No. 5, wliere there was no manure 

 applied, is deducted from the product of No. 1, where 

 manure was ploughed in deeply. Both plots being treated 

 precisely alike, except in the application of manure, the 

 surplus product in No. 1 must be due to the manure. The 

 money value is obtained through the following estimation. 



