LIB. II. 21, 22. 



199 



quod est in ordine ad hominem : octavo, de parascevis 

 ad inquisitionem : postremo an tern, de scala ascensoria 

 et descensoria 



XXTI 4 . 



Inter pr&rogativas instantiarum, prinio proponemus 

 instantias solitarias. Ene anteni sunt solitaries, qua? ex- 

 liibeiit naturam 44 , de (}na fit inquisitio, in talibus sub- 

 jectis, quse nil habent coiiimune cum aliis subjectis, 

 prater illam ipsam naturam : aut rursus qua? non ex- 

 hibent naturam, de quo fit inquisitio, in talibus sub 

 jectis, qua? sunt similia per omnia cum aliis subjectis, 

 praeterquam in ilia ipsa natura. Manifestum enim est, 

 quod hujusmodi instantia? tollant ambages, atque acce- 

 lerent et roborent exclmivam ; adeo ut paucse ex ili s 

 sint instar multarum. 



Exempli gratia: si fiat inquisitio de natura co/om 45 , 



42 Of these nine &quot;Auxilia intel- 

 lectus,&quot; one only has been perfectly 

 accomplished. We have fragments 

 of some of the others, but no more. 

 When we consider that these nine 

 Auxilia are only the subdivisions of 

 this second part of the Instauratio 

 Magna, we begin to discern the 

 magnificent proportions of Bacon s 

 design, and at the same time the 

 small portion of it which the great 

 Architect completed. 



43 The &quot;Prerogatives of (or among) 

 Instances&quot; are divided into three 

 heads : 



(1) i 15. Those which address 

 themselves to the Understanding. 



(2) 1 6 20. Those which assist 

 the Senses. 



(3) 21 27. Those which tend to 

 practice. 



There is not much arrangement ; 

 and the whole attempt is far too 

 cumbrous for general use. The 



titles, too, and the subdivisions, are 

 often fanciful. Particular &quot; Prero 

 gatives&quot; are, however, practically 

 speaking, continually being made 

 use of. 



44 &quot;QueeexhibentAWMram.&quot; Play- 

 fair translates this word by Quality : 

 perhaps it is better to retain the 

 ambiguous term which Bacon uses. 

 Solitary instances are of two kinds : 

 (i) where the same &quot; nature&quot; exists 

 in two bodies which have no other 

 point in common : (2) where things 

 entirely alike in all other respects 

 differ in some one point, as veins of 

 black and white in the same mar 

 ble : or colours in the same flower. 

 These Solitary Instances are much 

 the same with Mill s two first Expe 

 rimental Methods, (i) that of Agree 

 ment, (2) that of Difference. Mill s 

 Logic, III. viii. i, 2. 



45 It was by these same instances 

 of Colour that Sir I. Newton found 



