ive an increase of
10 bushels of wheat."

"This is a very interesting matter," said I, "but we will not discuss it
at present. Let us continue the examination of the subject. I do not
propose to make many remarks on the tables. You must study them for
yourself. I have spent hours and days and weeks making and pondering
over these tables. The more you study them the more interesting and
instructive they become."

The _sixteenth_ season (1858-9), gives us a little over 18-1/4 bushels
on the unmanured plot. On the plot manured with 14 tons farmyard manure,
36-1/4 bushels; and this is the highest yield this season in the
wheat-field. Mixed mineral manures alone, (mean of plot 5_a_ and 5_b_),
give 20-1/2 bushels.

25 lbs. ammonia (100 lbs. ammonia-salts), and mixed minerals, give
25-1/4 bushels, or an _increase_ over minerals alone of 4-3/4 bushels.

50 lbs. ammonia, an increase of 9-1/4 bushels.
100 " " " " " 14 "
150 " " " " " 14 "
200 " " " " " 14-1/4 "

The season was an unfavorable one for excessive manuring. It was too wet
and the crops of wheat when highly manured were much laid. The quality
of the grain was inferior, as will be seen from the light weight per
bushel.

The _seventeenth_ season (1859-60,) gives less than 13 bushels per acre
on the unmanured plot; and 32-1/4 bushels on the plot manured with 14
tons farm-yard manure. This season (1860), was a miserable year for
wheat in England. It was both cold and wet. Mixed mineral manures, on
plots 5_a_ and 5_b_, gave nearly 16 bushels per acre. 25 lbs. ammonia,
in addition to the above, gave less than 15 bushels. In other words it
gave no _increase_ at all.

50 lbs. ammonia, gave an _increase_ of 6 bushels.
100 " " " " " " 11-3/4 "
150 " " " " " " 15-1/4 "
200 " " " " " " 16-3/4 "

It was a poor year for the wheat-grower, and that, whether he manured
excessively, liberally, moderately, or not at all.

"I do not quite see that," said the Deacon, "the farm-yard manure gave
an _increase_ of nearly 20 bushels per acre. And the quality of the
grain must have been much better, as it weighed 3-1/2 lbs. per bushel
more than the plot unmanured. If the wheat doubled in price, as it ought
to do in such a poor year, I do not see but that the good farmer who had
in previous years made his la