18 2½ |56.7 |125 |1181|1945|3126| 229 | 233 | 462|11.6| 60.7| 9a 25 0¼ |53.3 |208 |1669|2918|4587| 717 |1206 | 1923|13.9| 57.1| 9b 19 1 |58.1 |215 |1334|2367|3701| 382 | 655 | 1037|19.0| 56.3| 10a 25 0¼ |57.8 |155 |1604|2926|4530| 652 |1214 | 1866|10.6| 54.8| 10b | | | | | | | | | | | 29 1½ |59.6 |233 |1984|3274|5258|1032 |1562 | 2594|13.1| 60.6| 11a 24 3 |57.9 |207 |1641|2898|4539| 689 |1186 | 1875|14.1| 56.4| 11b 29 3 |59.3 |174 |1938|3390|5328| 986 |1678 | 2664| 9.3| 57.2| 12a 26 0¾ |59.2 |167 |1717|2880|4597| 765 |1168 | 1933|10.7| 59.6| 12b 29 1½ |57.9 |253 |1955|3290|5245|1003 |1578 | 2581|14.7| 59.4| 13a 25 3¼ |58.4 |224 |1730|3072|4802| 778 |1360 | 2138|14.6| 56.3| 13b 28 0¼ |58.8 |184 |1834|3257|5091| 882 |1545 | 2427|11.1| 56.3| 14a 25 2½ |58.5 |227 |1726|2897|4623| 774 |1185 | 1959|15.1| 59.5| 14b | | | | | | | | | | | 22 3½ |58.1 |242 |1571|2937|4508| 619 |1225 | 1844|18.1| 53.4| 15a 24 2¾ |56.9 |202 |1607|3016|4623| 655 |1304 | 1959|14.1| 53.2| 15b | | | | | | | | | | | 29 3¼ |60.0 |184 |1973|3115|5088|1021 |1403 | 2424|10.2| 63.3| 16a 30 1¾ |58.4 |171 |1948|3380|5328| 996 |1668 | 2664| 9.4| 57.6| 16b 27 2½ |59.7 |285 |1933|3296|5229| 981 |1584 | 2565|17.0| 58.6| 17a 28 3½ |59.7 |222 |1946|3324|5270| 994 |1612 | 2606|12.6| 58.5| 17b 26 3 |59.2 |150 |1734|2935|4669| 782 |1223 | 2005| 9.2| 59.0| 18a 26 2¾ |59.6 |215 |1804|3056|4860| 852 |1344 | 2196|13.3| 58.7| 18b | | | | | | | | | | | 29 1¾ |56.2 |185 |1838|3295|5133| 886 |1583 | 2469|10.4| 55.7| 19 16 0½ |58.3 |111 |1050|1721|2771| 98 | 9 | 107|11.3| 61.0| 20 .. .. | .. | .. | .. | .. | .. | .. | .. | .. | .. | .. |}21 | | | | | | | | | | |}22 --------+-----+----+----+----+----+-----+-----+-----+----+-----+---- This season was considered unfavorable for wheat. The continuously unmanured plot produced 14¾ bushels, and the plot receiving 14 tons of barn yard manure, 25¾ bushels per acre nearly. 300 lbs. of ammonia-salts alone on plot 10_a_, gave 19¼ bushels per acre, while the same quantity of ammonia, with superphosphate in addition, gave, on plot 9_b_, 25 bushels per acre. The addition to the above manures of 300 lbs. of potash, 200 lbs. soda, and 100 lbs. sulphate of magnesia, on plot 10_b_, gave precisely the same yield per acre as the ammonia and the superphosphate alone. _The potash, soda, and magnesia, therefore, did no good._ 400 lbs. of ammonia-salts, with superphosphate, potash, etc., gave, on plot 17_b_, nearly 29 bushels per acre, or 3½ bushels more than the plot which has now received 70 tons of barn-yard manure in five successive years.