App.] Report of Experiments on the Growth of Wheat. 185 
Wheat Year after Year on the same Land. 
(Coun and Straw), in lbs., per Acre, per Annum. 
Harvests. 
Average. 
Of 
Of last 
. Plots. 
1855. 
1856. 
1857- 
1858- 
1859- 
I860- 
1861. 
. 1862. 
1863. 
20 Years, 2 
12 Years, 
1S-U-63. 
1852-63. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
Ib9. 
lbs. 
lbs 
2822 
3148 
2726 
3234 
3564 
2271 
2769 
3258 
3,254 
3368 
2989 
0 
3069 
3035 
2650 
2685 
3489 
2097 
2215 
2772 
3,079 
3134 
2792 
1 
6082 
6594 
59 10 
6349 
7073 
5304 
5303 
6642 
7,165 
5591 
6101 
2 
2tt>9 
2450 
2813 
2811 
3226 
2197 
1990 
2709 
2,727 
2719 
2626 
3 
3000 
2757 
2958 
2879 
3418 
2352 
2193 
2711 
2,957 
3452 
2804 
4 
2976 
3179 
302G 
2719 
3600 
2483 
2540 
2959 
2,97Q 
3767 
3002 
5a 
2943 
3369 
3247 
2870 
3666 
2595 
2692 
2961 
3,064 
3996 
3107 
56 
4590 
4767 
4968 
4395 
5555 
3393 
4328 
4554 
6,236 
4668 
4704 
6a 
4848 
4848 
4950 
4563 
5708 
3719 
4501 
4897 
6,250 
4859 
4863 
DO 
5995 
6872 
6462 
6415 
6774 
4615 
5764 
6106 
9,330 
5897 
6455 
7a 
6296 
6642 
6793 
6622 
6892 
4734 
5738 
6178 
9,385 
5982 
6519 
75 
5747 
7689 
7355 
7347 
7421 
5639 
6203 
7200 
10,383 
5926 
7083 
8« 
6495 
7489 
7579 
7342 
7604 
5600 
5985 
7087 
10,048 
6102 
7111 
86 
5878 
5894 
6634 
6701 
7076 
6635 
6607 
8738 
9,888 
5730 
6587 
9a 
4817 
4831 
5203 
4158 
5002 
4285 
3079 
4897 
6,920 
4668 
4808 
96 
3797 
4323 
4208 
3569 
3937 
3118 
2784 
4050 
6,068 
4203 
40,38 
10a 
5073 
4895 
5060 
4390 
4920 
3420 
3196 
4443 
6,914 
4521 
4754 
106 
3694 
5518 
5375 
4774 
5155 
3773 
4032 
4548 
7,212 
4984 
5015 
lift 
4733 
5389 
5317 
5117 
5275 
4000 
4223 
4607 
7,519 1 
5051 
5170 
116 
5478 
5949 
6394 
6100 
6610 
4878 
5201 
5745 
8,976 
5681 
6126 
12a 
6182 
5804 
6312 
6060 
6858 
4664 
5481 
5634 
8,819 
5672 
6169 
126 
5427 
5779 
6421 
6077 
6774 
4568 
5486 
5542 
9,192 
5614 
61 10 
13a 
5980 
5659 
6386 
61)74 
6894 
4637 
5794 
5691 
9,238 
568 1 
6236 
136 
5531 
6397 
6439 
6150 
6817 
4636 
5502 
5283 
8,986 
5651 
6174 
14a 
6161 
6279 
6351 
6146 
6774 
4666 
5476 
5558 
8,749 
5658 
6224 
146 
5855 
5444 
6368 
' 5S00 
6826 
4387 
5506 
5268 
8,276 
5488 
5883 
15a 
6415 
5797" 
6543 
6134 
7088 
4704 
5727 
5787 
8,240 
5722 
6214 
156 
6634 
7955 
7814 
7499 
7953 
5973 
6761 
6752 
10,717 
6680 
7572 
16a 
7106 
7917 
7897 
7530 
7798 
6096 
6775 
6730 
10,332 
6795 
7582 
166 
3203 
5541 
3700 
5353 
3730 
4109 
2982 
4827 
3.2S8 
4821 \ 
(17a) 
2914 
5400 
3523 
5455 
3541 
4518 
2829 
4762 
3,292 
4712 J 
3166 4 
\176 3 
6144 
3152 
6009 
3480 
6506 
2649 
5144 
3161 
7,889 
4839 \ 
/18a( 
6385 
3069 
5884 
3305 
6630 
2706 
5446 
3335 
7,737 
4847 / 
5809 4 
\186J 
5818 
5621 
5793 
5362 
5926 
4178 
5345 
4132 
7,577 
5400 
5537 
19 
2986 
2963 
2777 
2819 
3256 
2155 
2340 
2335 
2,609 
2840 
2703 
20 
3952 
3927 
3353 
3947 
4723 
2639 
2749 
3465 
4,279 
3671 
3727 
21 
4010 
3849 
3298 
3592 
4440 
2414 
3263 
3430 
4,599 
3618 
3670 
22 
4 The average given for Plots 17 is that of 12 years mineral manure succeeding ammonia-salts 
(Plots 17 or 18); and that given for Plots 18, of 12 years ammonia-salts succeeding the mineral 
manure (Plots 17 or IS). 
