CHAP. VIII. 



THE EFFECTS OF ACIDS. 



18S 



inflection. After describing the experiments, a few 

 concluding remarks will be added. 



ACIDS, MUCH DILUTED, WHICH CAUSE 

 INFLECTION. 



1. Nitric, strong inflection ; poi- 



sonous. 



2. Hydrochloric, moderate and 



slow inflection; not poisonous. 



3. Hydriodic, strong inflection ; 



poisonous. 



4. lodic, strong inflection ; poi- 



sonous. 



5. Sulphuric, strong inflection ; 

 somewhat poisonous. 



6. 'Phosphoric, strong inflection ; 



poisonous. 



7. Boracic, moderate and rather 



slow inflection ; not poisonous. 



8. Formic, very slight inflec- 

 tion ; not poisonous. 



9. Vcetic, strong and rapid in- 

 flection ; poisonous. 



10. Propiouic, strong but not very 

 rapid inflection ; poisonous. 



11. Oleic, quick inflection; very 

 poisonous. 



12. Carbolic, very slow inflection ; 



poisonous. 



13. Lactic, slow and moderate in- 

 flection ; poisonous. 



14. Oxalic, moderately quick in- 

 flection ; very poisonous. 



15. Malic, very slow but consider- 

 able inflection; not poisonous. 



1 6. Benzoic, rapid inflection ; very 



poisonous. 



17. Succinic, moderately quick 

 inflection ; moderately poi- 

 sonous. 



18. Hippuric, rather slow inflec- 

 tion ; poisonous. 



19. Hydrocyanic, rather rapid in- 

 flection ; very poisonous. 



ACIDS, DILUTED TO THE SAME 

 DEGREE, WHICH DO NOT CAISH 

 INFLECTION. 



1. Gallic ; not poisonous. 



2. Tannic ; not poisonous. 



3. Tartaric; not poisonous. 



4. Citric ; not poisonous. 



5. Uric ; (?) not poisonous. 



Nitric Acid. Four leaves were placed, each in thirty minims 

 of one part by weight of the acid to 437 of water, so that each 

 received -^ of a grain, or 4'048 mg. This strength was chosen 

 for this and most of the following experiments, as it is the same 



