386 
MESSRS. J. B. LAWES AND J. H. GILBERT ON THE RESULTS OF 
amounts of growth on the different plots, and in the different seasons. Appendix- 
Table II. (p. 408), gives the so-estimated amounts of second crop, on each plot, in 
each season. But the general character and bearing of the results will be sufficiently 
brought to view in the following abstract table (XXVIII.), in which are given those 
for a selection of the plots only, representing very characteristically different conditions 
of manuring. The plots for which the results are given are— 
Plot 3. Unmanured, every year. 
Plot 7 . Mixed mineral manure (including potass), without nitrogenous manure, 
every year. 
Plot 9. Mixed mineral manure (including potass), and 400 lbs. ammonia-salts, 
every year. 
Plot 11. Mixed mineral manure (including potass), and 800 lbs. ammonia-salts. 
Plot 14. Mixed mineral manure (including potass), and nitrate of soda, containing 
the same amount of nitrogen as the ammonia-salts on plot 9. 
The particulars given are—the actual amounts of produce of the first crops, the 
estimated amounts of the second crops, and the proportion of the second to the first as 
100 ; and, at the bottom of the table are given the averages—of the first crops, of the 
estimated second crops, and the percentage of the second to the first, for the first eight 
years of the 20, in every one of which the second crops were fed off and their quantities 
estimated, and for eight subsequent (though not consecutive! years, in seven of which 
the second crops were fed and estimated, and in the eighth (the last of the 20) in 
which the second crops were cut, removed, and weighed. There are also given, at the 
foot of the table, the particulars of the produce, for the same plots, for the three years 
subsequent to the first 20. 
