54 BULLETIN OF THE BUSSEY INSTITUTION. 
of experiments (B), which were made in the autumn of 1872, upon 
ashes of the same quality as those used in A. Eleven wide-mouthed 
glass jars (preserve-jars) were each charged with 525 grammes of the 
coal-ashes, Three buckwheat seeds were planted October 28 in each 
jar, and all the jars were watered with rain-water until the seeds had 
germinated and the young plants had begun to grow independently of 
. the seed. henceforth each jar, excepting one that got nothing but 
rain-water, was watered either with a very weak solution of nitrate of 
potash,* nitrate of lime,t nitrate of ammonia,* sulphate of magnesia, * 
or phosphate of potash,* or with a mixture of two or more of these 
solutions, 
The result of these trials will appear from the following table : — 
The crop (harvested Jan. 2, 1878). 
The ashes were Weighed 
watered with Grew to height Had 
i in inches. seeds. 
1 | Nitrate of potash . | 0.605 |{ [PMD ao, }) 23 
1 it3 = a 
9 { Sulphate of Nees i 0.095 1 0 ee 3 
1 «© =14 
3 Nitrate oflime . . 1.360 t «> == Jes Sas 
’ Nitrate of potash and ‘x me "F 1 
4 sulphate of mag; 0.720 ; ray ay 9° 21 
nesia . “ —— 1 
5. | Rain-water . . . | 0.090 ; ; Hd ede 4! ; 2 These versonly 
6 Nitrate of ammonia. 0.840 ; : yh zat 1? 22 | Only two plants. 
7 | Phosphate of potash | 0.135 ee yi ats Y ; 4 
Nitrate of lime and Li RM ere 1B 
8 phosphate of Sake 1.865 |< 1. “ ==124 >| 37 
gehiis4.4 1 & =] 
Sulphate of ' mag- fae lide ae 
9 nesia and _ phos- 0.105 ; *phhre hye a 2 | Only two plants. 
phate of potash .! 
Nitrate of lime, sul- 
phate of magnesia, 1 “« =16 
phosphate of Boe 1080 2 < = 9} a 
ash. 
Nitrate of lime, ni- ee eee 
trate of potash, sul- 1.050 t ee mea k 95 
phate of magnesia, , a aye 
\_ phosphate of potash 
* 0.25 gramme to the litre. t 1.00 gramme to the litre. 
