ELEMENTS 



OF 



ENTOMOLOGY 



So great is tlie number of natural bodies on the face of our earth, 

 that on a general view the mind recoils at the attempt to investigate 

 them as impossible. But the invention of systems has facilitated the 

 task; and every natural object can be traced by certain characters to 

 its place in the system^ whether natural or artificial. 



Those who with a philosophical eye have contemplated the produc- 

 tions of Nature, have all by common consent divided them into three 

 great groups; namely, the Animal, the "Vegetable, and the Mineral 

 kingdoms. 



Animals are distinguished by being organized bodies, which have 

 life, sensation, and are capable of voluntary motion. 



Vegetables are organized bodies, which are endowed with a living 

 principle but want sensation. 



MiKErvALS are unorganized, without life or sensation. 



Zoology, or the study of Animals, is not only the amplest and most 

 difficult, but the most pleasant and profitable part of Natural History. 

 I'he following is the system of the celebrated Linne. 



Division 1. A heart with tzco auricles and tzco ventricles; warm and red 

 blood. 



Class I. Mammalia. Viviparous animals, or such as suckle their young. 

 Class II. AvES. Oviparous animals. Birds. 



Division 2. Heart with one auricle and one ventricle ; cold and red blood. 



Class III. Amphibia. Animals breathing arbitrarily through lungs. 

 Class IV. Pisces. Animals with gills. Fishes. 



Division 3. Heart with one ventricle, no auricle; white and cold blood. 



Class V. Insecta. With antennae, and undergoing transformations. 



Insects. 

 Class VI. Vermes. With tentacula; and undergoing no change. Worms- 



