238 Characteristics of Animals. [Oct., 



Its atomic weight is 1698. 



Saturating capacity, 5.8. — Berzelius and Hermann. 



Crenic acid is composed of 



Carbon, - - - 40.24 



Hydrogen, - - - 7.69 



Nitrogen, - - - 7.50 



Oxygen, - - - 44.57 



Hermann. 



Its atomic weight is 1323.3. 



Saturating capacity, 7.56. 



Humic acid, according to Sprengel, is composed of 

 Carbon, _ - - 58. 

 Hydrogen, - - - 2.1 

 Oxygen, - - - 39.9 



According to Mulder, humic acid from peat of Harlem lake 

 yields when dried at 140 deg. Cent., and analyzed. 



Carbon, - - - 60.13 



Hydrogen, - - - 4.75 



Nitrogen, - _ - 3.61 



Oxygen, - - - - 31.55 



He supposes the nitrogen is derived from ammonia contained 

 in the peat, but it is more probable that it came from the apocre- 

 nates and crenates which were not separated from the humic 

 acid. 



CHARACTERISTICS OF ANIMALS. 



BY A. CAULKINS, M. D. 



What are the specific characters as pertaining to man? The 

 infant at the breast exhibits its instincts as obviously as the colt 

 or the calf; but the parallelism fails as intelligence dawns and 

 days advance. One difference in the front rank is observable in 

 the phenomena of memory. The memory of the brutes is spon- 



