NATURAL HISTORY. 6d 



" To me be Nature's volume broad displar'd ; 

 And to peruse its all -instructing page, 

 Or, haply catching inspiration thence, 

 Some easy passage, raptur'd to translate." THOMSON. 



III. AMPHIBIA (from two Greek words, meaning both and life). 

 Animals with cold red blood, breathing by lungs, capable of 

 subsisting for a time either on land or in water. 



IV. PISCES (fishes). Animals with cold red blood, breathing by 

 gills, and not by lungs. 



V. INSECTA (insects). Animals with cold white blood, having 

 antennae (feelers) on the head, and articulated (jointed) horny 

 organs of motion. 



VI. VERMES (worms). Animals with cold white blood, without 

 antennae, for the most part with tentacula (having simple thread- 

 like organs for protrusion around their mouths), and without 

 articulated organs of motion. 



165. According to the SYSTEM of CUVIER, a leading grand divi- 

 sion prevails over the whole of these, viz., the vertebrated, from th 

 invertebrated (from the Latin verto, to turn) ; the first being dis- 

 tinguished by having a back-bone, the latter by the absence of this 

 organ. The vertebrated animals are divided into four cla&set, 

 thus: 



DIVISION L VERTEBRATJL 



Class L Mammalia. II. Aves. III. Eeptilia. IV. Pisces 



DIVISION II. MOLLUSCA. 



[This is the commencement of the invertebrated division, but the 

 term is disused.] 



Class 1. Cephalapoda. II. Oteropoda. III. Gasteropoda. 

 IV. Awphala. V. Brachiopoda. VI. Cirrhopoda. 



DIVISION III. ARTICTJLATA. 



Class I. Annelides. II. Crustacea. III. Arachnids*. 

 IV. Insecta. 



SUB-DIVISION IV. RADIATA. 



Class L Echinodermata. II. Entozoa. III. Acalephco 

 IV. Polypi. V. Infusoria. 



