CLASSIFICATION. 
The Animal Kingdom may be arranged in Five Grand Divisions, as follows : 
Division I. VERTEBRATA, or vertebrate animals. 
Division II. MOLLUSC A, or soft animals. 
Division III. ARTICULATA, or articulated animals. 
Division IV. RADIATA, or radiated animals. 
Division V. PROTOZOA, or the lowest forms of animals. 
These are further subdivided into Classes and Orders, as follows : 
Division I. VERTEBRATA : 
Animals having a vertebrated backbone, serving as the basis of a bony skeleton or framework, 
and divided into five Classes and numerous Orders, as follows : 
€3Ia§S 1. MAMMAff^IA : animals that suckle their young, divided into fourteen Orders : 
ORDER 1. BIMAMA, or two-handed, including only the human species. 
ORDER 2. QUADRUMAMA, or four-handed, including the apes, baboons, mon- 
keys, lemurs, the cheiromys or aye-aye, flying lemurs, &c-. 
ORDER 3. CHEIROPTERA, from the Greek, signifying a hand and a wing, in- 
VoL. 1. — 4 
eluding the bats. 
