458 NOVUM OllGANUM. [BOOK IL 



together, as roses, peas in baskets ; so hay, if it be damp when 

 tnckcd, often catches fire. 



IS. Quick lime sprinkled \vith water. 



19. Iron, when iirst dissolved by acids in a glass, and with 

 out any applicaiiou to fire ; the same of tin, but not so in 

 tensely. 



20. &quot;Animals, particularly internally; although the heat is 

 not perceivable oy the touch in insects, on account ot their 

 small size. 



21. Horse dung, and the like excrement from other animals, 

 when fresh. 



22. Strong oil of sulphur and of vitriol exhibit the operation 

 of heat in burning linen. 



23. As does the oil of marjoram, and like substances, in burn 

 ing the bony substance of the teeth. 



21. Strong and well rectified spirits of wine exhibit the same 

 effects ; so that white of eggs when thrown into it grows hare 

 and white, almost in the same manner as when boiled, and bread 

 becomes burnt and brown as if toasted. 



25. Aromatic substances and warm plants, as the dracunculus 

 [arum], old nasturtium, &c., which, though they be not warm to 

 the touch (whether whole or pulverized), yet are discovered by 

 the tongue and palate to be warm and almost burning when 

 slisrhtly masticated. 



2(5. Strong vinegar and all acids, on any part of the body not 

 clothed with the epidermis, as the eye, tongue, or any wounded 

 part, or where the skin is removed, excite a pain differing but 

 little from that produced by heat. 



27. Even a severe and intense cold produces a sensation of 

 burning.&quot; 



&quot; Nee ToreaQ penetrabile frigus adurit.&quot; 



28. Other instances. 



AVc are wont to call this a table of existence and presence. 



XII. We must next present to the understanding instances 

 which do not admit of the given nature, for form (as we have 

 observed) ought no less to be absent where the given nature is 

 absent, than to be present where it is present. If, however, we 

 were to examine every instance, our labour would be infinite. 



Negatives, therefore, must be classed under the affirmatives, 

 and the want of the given nature must be inquired into more 

 particularly in objects which have a very close connection with 

 those others in which it is present and manifest. And this we 

 ?,re wont to term a table of deviation or of absence in proximityi 



&quot;Ne tenues pluviae, rapidive potentia solia 



Acrior, aut Boreae penetrabile Irigus adurat.&quot; 



Virg. Georg. i. 02. 93. 



