230 NOVUM ORGANUM. 



que cnini liujusmodi instantiae utiles sunt tan turn, qua- 

 tenus subjungnntur propositionibus fixis ; verum etiam 

 j&amp;gt;cr so, ct in proprietate sua. Indicant cnim non ob 

 scure veras sectiones naturae, et mensuras rerum, et 

 illnd (fuousfjiic natura quid faciat ct fcrat, et deinde 

 transitus naturae ad alitid. Talia sunt aurum, in pon- 

 dere ; ferruin, in duritie; cete, in quantitate anima- 

 liuin ; can is, in odore; inflammatio pulveris pyrii, in 

 cxpansione celori ; et alia id genus. Nee minus exlii- 

 benda sunt ca, quae sunt ultima gradu infimo, quam 

 quae supremo: ut spiritus vini, in pondcre; sericum, 

 in mollitie ; vermiculi cutis, in quantitate animalium ; 

 et civtera. 



XXXV. 



Inter prcerogativas instantiarum, ponemus loco deci- 

 nio tertio instaniias fcederis sivc itnionis^. Esc sunt, 

 quae confundunt et adunant naturas, quae existimantur 

 essc heterogeneae ; et pro talibus notantur et signantur 

 per divisiones receptas. 



At instantice fcederis ostcndunt operationes et effec- 

 tus, quae deputantur alicui ex illis lieterogeneis ut 

 propria, competere etiam aliis ex lieterogeneis ; ut 

 convincatur ista lietcrogenea (qua: in opinione est) 

 vera non esse, aut essentialis ; sed nil aliud esse, quam 

 modificatio naturae communis. O])timi itaque sunt 



J&amp;gt; 5 Cases in which &quot;Natures&quot; that he speaks of this Term Fcedus 



supposed to be heterogeneous are as &quot;commune vinculum animi et 



found, by investigation of opera- corporis&quot; in the De Augm. Scient. 



tions and effects, to be near to one iv. i, as though there was a simi- 



anolher, and the dissimilarity is larity in kind between soul and 



thereby proved to be untrue. These body. See App. C. 

 Instances help us in our search for The illustrations from popular 



genera, and are connected with the belief in this Aphorism are very 



power of Analogy in our minds, not curious : Heat of three kinds, Mo- 



with that of seeing Differences. The tion, &c. 

 Positive Philosopher may notice 



