PHYSIOLOGY. 493 



3052. One period is that of sucking; the edentulous 

 condition of the Bird. This is called the suckling age, 

 baby-hood or infancy. 



3053. One is that of the eruption and persistence of 

 the milk-teeth; the condition of the Rodentia, a repe- 

 tition of the gelatinous animals. This is the age of 

 childhood. 



3054. One is the eruption of the permanent set of 

 teeth until the attainment of puberty, or the develop- 

 ment of the sexual functions ; the condition of the Mar- 

 supialia; repetition of the testaceous Mollusca. This 

 is boyhood. 



3055. From the state of puberty until the develop- 

 ment of the faculty of understanding ; the condition of 

 the Shrews and Bats, the repetition of Insects. The age 

 of youth. 



3056. The period of the understanding passes through 

 the Ungulata, and is a repetition of Fishes, Reptiles, and 

 Birds. This is the first stage of manhood. 



3057. After the understanding the reason matures; 

 this is the condition of the higher Mammalia up to Man ; 

 it is a repetition of the Mammalia. This is adult age or 

 mature manhood. 



3058. Then follows the decadence or dying off of the 

 sexual functions; a retrogression through the animal 

 classes. Gray old age. 



3059. Finally, the reason and understanding die ; 

 childhood returns and terminates with the death of the 

 vegetable in the animal. 



3060. Death results through the sexual animal. 



3061. Death is only a continuous growth through re- 

 trogression into the organic primary matter or Infusoria. 



3062. Death is an organized decomposition. 



3063. Decomposition is a forming of seeds, ova, and 

 foetuses. 



3064. Dying is a multiplication of self. 



