154 DROSERA ROTUNDIFOLIA. [CHAF VIII. 
different effects of phosphate of ammonia on leaves previously 
immersed in various solutions. 
ACIDS. 
I will first give, as in the case of the salts, a list of the 
twenty-four acids which were tried, divided into two series, 
according as they cause or do not cause inflection. After 
describing the experiments, a few concluding remarks will 
be added. 
ACIDS, MUCH DILUTED, WHICH CAUSE ACIDS, DILUTED TO THE SAME 
INFLECTION. DEGREE, WHICH DO NOT CAUSE 
INFLECTION. 
. Gallic; not poisonous. 
. Tannic; not poisonous. 
. Tartaric ; not poisonous. 
. Citric ; not poisonous. 
. Uric; (2) not poisonous. 
1. Nitric, strong inflection; poi- 
sonous. 
2. Hydrochloric, moderate and slow 
inflection ; not poisonous. 
3. Hydriodic, strong inflection ; 
poisonous. 
4. lodic, strong inflection ; poisonous. 
5. Sulphuric, strong inflection; 
somewhat poisonous. 
6. Phosphoric, strong inflection ; 
poisonous, 
7. Boracic, moderate and rather 
slow inflection; not poisonous. 
8. Formic, very slight inflection; 
not poisonous. 
9, Acetic, strong and rapid inflec- 
tion ; poisonous. 
10, Propionic, strong but not very 
rapid inflection ; poisonous. 
11. Oleic, quick inflection; very 
poisonous. 
12, Carbolic, very slow inflection; 
poisonous, 
13. Lactic, slow and moderate inflec- 
tion ; poisonous. 
14. Oxalic, moderately quick inflec- 
tion; very poisonous. 
15. Malic, very slow but considerable 
inflection; not poisonous. 
16. Benzoic,* rapid inflection; very 
poisonous. 
17. Succinic, moderately quick in- 
flection ; moderately poisonous. 
18. Hippuric, rather slow inflection ; 
poisonous. 
19. Hydrocyanic, rather rapid in- 
flection ; very poisonous. 
Cue Oboe 
