TABLE OF COMPARISONS. 



cclxxxvii 



TABLE III. 



The third, or table of Comparisons, (a) consists of com- Table of 

 parisons of quantity of the nature sought in the same 

 bodies and in different bodies. Thus, 



COMPARISONS OF HEAT. 



In different bodies. 



There is no solid body naturally 



hot. 

 All bodies are in different degrees 



capable of heat. 

 There is no whole vegetable hot to 



the external touch. 

 Living animals. 

 Flame. 



Anvil struck by hammer. 

 The continuance of a body in heat. 

 Boiling water. 

 Pepper masticated. 

 Boiling lead. 

 Gas. 



Lightning. 

 Acids. 



&c. &c. 



In the same body. 



In Animals. 



Animal heat varies from minute 

 perceptibility to about the heat 

 of the hottest day. It is always 

 endurable. It is increased by 

 food, venery, exercise, fever, &c. 



In some fevers the heat is constant, 

 in others intermittent, &c. 



Heat varies in different parts of the 

 same body. 



Animals differ in heat, &c. 



Flame. 



1. The lambent flame, related by 



historians to have appeared on 

 the heads of children, gently 

 playing about the hair. 



2. The coruscations seen in a clear 



night on a sweating horse. 



3. Of the glow-worm. 4. Of the 

 ignis fatuus. 5. Of spirits of wine. 



6. Of vegetables, straw, dry leaves. 



7. Of boiling metals. 



8. Of blast furnaces. 



By observing in this table the cause of the different 

 quantities of the nature sought, some approximation may 

 be made to the nature itself. Thus vegetables, or common 

 water, do not exhibit heat to the touch, but masticated 

 pepper or boiling water are hot. Flame is hotter than 

 the human body : boiling water than warm. Is there any 

 difference except in the motion of the parts ? 



() Aph. 13. Nov. Org. L. 2. vol. ix. p. 313. 



