Sulphuric  Acid,  in  the  Rain-Water  collected  at  Rothamsted.  321 
Table  III. — The  Amount  of  various  Monthly  Rainfalls,  and  the 
Amounts  of  Nitrogen  as  Ammonia  per  Million  of  Rain,  and 
per  Acre,  1878-83. 
Mean. 
Month. 
1878. 
1879. 
1880. 
1881. 
1882. 
1883. 
June,  1881, 
to 
May,  1883. 
1878  to 
1883, 
Rainfall — Inches. 
January 
2-849 
0-550 
1-139 
1-572 
3 
304 
2-438 
1-883 
February 
3-799 
2-901 
3-705 
2-020 
4 
344 
3-182 
3-354 
March  . . 
0-977 
1-183 
1-128 
1-566 
0 
885 
1-225 
1148 
April 
4-093 
2-790 
2-161 
0-997 
3-925 
1 
477 
2-701 
2-574 
May 
- 
3-481 
0-742 
1-376 
2-068 
1 
886 
1-977 
1-911 
June 
5-551 
1-966 
1-633 
3-926 
2-780 
3-269 
July 
,, 
5-261 
1-762 
2-087 
1-925 
3-037 
August  .. 
. . 
5-817 
2-075 
3-946 
3-946 
September 
1-462 
3 131 
5-858 
2171 
2-287 
2-229 
2-982 
October  .. 
0-815 
5-939 
3-046 
6-517 
4-782 
4-079 
November 
3-475 
3-443 
3-459 
3-459 
December 
0-823 
3-472 
4-383 
3-283 
3-833 
2-990 
Total  .. 
•• 
•• 
34-798 
34-477 
34-632 
Nitrogen  as  Ammonia,  per  Million  of  Rain. 
January 
0-219 
0-495 
0-659 
0-422 
0-213 
0-280 
0-320 
February 
aa 
0-298 
0-371 
0-467 
0-227 
0-199 
0-208 
0-314 
March  . . 
0-357 
0-638 
0-371 
0-313 
0-856 
0-507 
0-483 
April 
0-466 
0-617 
0-881 
0-604 
0-319 
0-576 
0-389 
0-533 
May 
•• 
0-470 
1-276 
0-631 
0-535 
0-412 
0-476 
0-557 
June 
0-384 
0-508 
0-412 
0-445 
0-436 
0-425 
July 
, , 
, . 
0-309 
0-618 
0-503 
0-556 
0 413 
August  .. 
0-178 
0-453 
0-250 
0-250 
September 
0-576 
0-412 
0 160 
0-350 
0-401 
0-377 
0-318 
October 
. # 
0-988 
0 165 
0-214 
0-254 
0-241 
0-251 
November 
0-237 
0-137 
0-187 
0 187 
December 
•• 
1-038 
0.162 
0-196 
0-360 
0-266 
0-289 
Average 
•• 
- 
•• 
•• 
0-343 
•• 
0-316 
0-340 
Nitrogen  as  Ammonia,  in  Lbs.  per  Acre. 
January 
0-141 
0-062 
0-170 
0 150 
0-159 
0 155 
0-136 
February 
0-256 
0-243 
0-391 
0-104 
0-196 
0-150 
0-238 
March  . . 
0-079 
0-171 
0-095 
0-111 
0-171 
0-141 
0-125 
April 
0-432 
0-389 
0-431 
0-136 
0-283 
0-192 
0-238 
0-311 
May 
0-370 
0-214 
0-196 
0-250 
0-176 
0-213 
0-241 
Juno 
# # 
0-482 
0-226 
0-152 
0-395 
0-274 
0-314 
July 
. , 
, , 
0-368 
0-246 
0-238 
0-242 
0-284 
August  .. 
0-234 
0-213 
0-224 
0-224 
September 
0 191 
0-292 
0-2i2 
0-172 
0-208 
0 190 
0-215 
October 
0-182 
0-222 
0-147 
0-375 
0-261 
0-232 
November 
. . 
0-186 
0-107 
0-147 
0-147 
December 
0 193 
0-127 
0-194 
0-267 
0-231 
0-195 
Total  .. 
•• 
..  1 .. 
2-701 
•• 
2-466 
2-662 
