198 M. C. Lea on the Influence of Organic and Inorganic 
No. 9. Same, acidulated 3. drops hydrochloric acid. 
10. Plain water for — 
ai. é gran sulphite of soda. 
12. chlorate of aie 
The results were as follows. At the end of 
48 hours—Germination evident in all. oe —o 4,10, 11; me- 
dium, 2; least, 1, 3, 5, 6, 7,8 
3 days—Most advanced, 4,10; 11; sites 5, 1, 8, 9, 12; least, 1, 2, 
4 days—-Most advanced, 4,10, 11; medium, 5, 7, 12; less, 2, 6, 8, 9; 
east, 1, 3. 
5 days—Most advanced, 4, 10,11; medium, 5, 6, 7, 8, 12; less, 1, 9; 
east, 2, 3. 
6 days—Most advanced, 4, 10, 11; a little less, 5, 6, 7,8; much behind, 
3, 9. 
Some curious deductions are to be drawn from these results. 
Nitric acid did not at first very strongly affect the growth, less 
than seven other substances, then eventually its influence be- 
came much more fe 
Bicarbonate of potash was the least injurious of all the sub- 
ote tried, next came sulphite of soda, and next carbonate of 
No saline or other substance included acted in any way a8 4 
stimulant, the product of the plain water as an average Was 
fully up to any of the rest, though as will hereafter be seen, the 
largest plant was formed in another vessel. 
In the observations just made I have endeavored to show the 
daily course of action; in the following table I have summed 
up the total effects at iiss end of seven days, when experiment 
was discontinued. 
Total results at the end of seven days. 
Pr 
No, of seeds = Ave | Total amount 
eaes 9 pepsin a | that germin- | height vl a _ amount at veg- 
ated out of 20. young plan) etation. that in 
t 
ls i 3, U'016, 18 54 
2. | NO,, 0033, 14 z 28 
3. , 0050, 3 3 "9 
4. |} KO 2CO,, 0-083, 16 2 32 
5. | NaO CO,, 0083 14 1% dl 
6. | Ammonia, 18 1°5 195 
i 2 H 3! 7 Pies TT 14 15-4 
8. plates 16 1:3 208 
9. Same with 3 rope HCl. 8 “4 32 
10. | Plain 16 .y 32° 
il. | Na 90, a 12. 2 . 4 
12. KO clo,, be hie 13 “5 65 
