Absorptive Properties of Soils. 509 
Soil No. 3, subsoil of tertiary drift taken at 4 feet deep. 
Experiment No. 29. 
Ammonia in natural soil. 
First Analysis — 
Platinum Salt. Ammonia in 1000. 
1000 grs. gave 1-44 equal to 0-1107 
Second Analysis — 
1000 grs. , 1-42 „ 0-1092 
Moan of the two Analyses 0-10P9 
Experiment No. 39. \ 
Ammonia in soil after liming. 
First Analysis — 
Platinum Palt. Ammonia in lOCO. 
1000 grs. distilled gave 0-G8 equal lo 0 0518 
Second Analysis — 
1000 grs. „ 0-64 ,, 0-0488 
Mean of the two Analyses 0-0502 
Experiment No. SI. 
Ammonia in soil after liming and exposure to ammonia. 
First Analysis — 
Platinum Salt. Ammonia in 1000. 
1000 grs. distilled gave 14-01 equal to 1-0777 
Second Analysis — 
1000 grs. ,, 13-95 „ r0753 
Mean of the two Analyses 1-07C5 
Experiment No. 32. 
Ammonia in soil after exposure to ammoniacal vapour without 
previous liming. 
First Analysis — 
Platinum Salt. Ammonia in lOPO. 
250 grs. distilled gave 3-49 equal to I'0759 
Second Analysis — 
250 grs. „ 3-64 „ 1-1201 
Mean of the two Analyses 1 • C970 
The series of experiments in the case of the soil No. 3 gives, 
therefore, the following results : — 
Ammonia in 1000 grs. natural soil 0*1099 
Ditto after liming 0 0502 
Ditto after liming and exposure to ammonia .. .. 1 '07^5 
Ditto alter ammonia without liming 1 -0970 
Here again we see that the liming scarcely at all interferes for 
or against the absorption of ammonia — the differences between 
the third and fourth line of figures being witli every case quite 
within the errors of experiment. 
VOL. XV. 2 L 
