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QUESTIONS. 



INTRODUCTION. 



CHAPTER I. 



OF THE NATURE OF LIVING BODIES, AND THE DISTINCTION 

 BETWEEN ANIMALS AND VEGETABLES. 



(P. 1.) What is the first, most obvious classification of all the objects 

 of the material world? What are the properties of natural bodies, on 

 which this arrangement is founded? What objection is there to this 

 threefold division? What would be a more philosophical and accu- 

 rate classification ? (P. 2.) How are the three classes of the former 

 arrangement included in the two of the latter ? How many points of 

 distinction are named between animate and inanimate objects ? Name 

 them in (heir order. What is said of the first point of difference ? of 

 the second ? (P. 3.) What is nutrition ? What is said of the third 

 point of difference ? (P. 4.) What is the most striking instance of the 

 power of insulation in living systems ? What is the degree of animal 

 heat natural to man ? To what extremes of temperature have men 

 been subjected, in different latitudes? To what degree of artificial 

 heat have individuals exposed themselves with impunity ? Do or do 

 not all animate substances possess this independence of the ordinary 

 physical and chemical laws to the same extent ? (P. 5.) Can you 

 give any other illustration of this principle ? any other illustration ? 

 What is said of the fourth point of distinction ? How do inanimate 

 substances terminate their existence ? *- 



(P. 6.) Is it easy or difficult, generally, to distinguish an animal from 

 a vegetable ? Is it easy or difficult to specify any single point of dis- 

 tinction, that will determine in all cases? What was Buffon's opin- 

 ion ? What objection is there to his view ? (P. 7.) Name the power 

 which some have considered as peculiar to animals. What are some 

 of the animals that do not possess it ? Mention cases of vegetable sub- 

 irtances that do possess it. What other power has been regarded as 



