506 The Iiifliience of Lime on the 
As I before said, the whole series of soils collected has not, b} 
a good deal, been thus examined : — 
Soil No. 15. 
Experiment No. 17. 
Ammonia in the soil in its natural state. 
First Analysis — 
Platinum Salt. A.mmoni;i. 
1000 grs. of soil distilled with 
caustic soda and lime, gave 3 '73 grs. .. equal to 0*28G 
[ Second Analysis — 
1000 grs. of soil distilled with 
caustic soda and lime, gave 4 28 ,, .. equal to 0*300 
The mean of the two experiments gives 0"293 grains of 
ammonia as the quantity in 1000 grains of the natural soil. 
Experiment Wo. 18. 
The same soil (No. 15) after treatment with lime. 
First Analysis — 
Platinum Salt. Annnunia. 
1000 grs. soil, distilled as before, gave 2*32 grs. equal to 0- 17C9 
Second Analysis — 
1000 grs. soil .. gave 2-12 „ .. ,, 0-1616 
The mean of these two results gives the ammonia in the soil, 
after liming, as 0" 1G92 in 1000 grains of soil. 
Experiment "So. 19. 
Same soil (No. 15) after liming, exposed to the vapour of car- 
bonate of ammonia : 
First Analysis — 
Plafinnm Salt. Ammonia in 1000 gr^. 
500 grs. distilled gave 14"49grs. .. equal to 2-22C5 grs. 
Second Analysis — 
500 grs. distilled ,, 14-44 ,, .. ,, 2-2217 „ 
Mean of the two Analyses, 2*2241 ammonia in 1000 grs. soil. 
Experiment No. 20. 
Same soil (No. 15) exposed to ammoniacal v apour icithout 
previous liming. 
First Analysis — 
Platinum Salt. Ammonia in 1000 grs. ' 
250 grs. distilled, gave 0-14 1-9053 
Second Analysis — 
250 grs. distilled, gave G'lH 1-9070 
Mean of tlic two Analyses 1 -9061 
We thus have the following quantities of ammonia in 1000 
grains of soil in tlie (Ulfcrcnt states in wliich it was examined. 
