AND PRODROMI. 175 



in the great structure for occasional writings of this 

 kind, which could not have properly come into any 

 of those three books originally planned. The addi 

 tion of the third and fourth parts indeed, that is, the 

 assigning of a separate part to the Phenomena Uni- 

 versi, and a separate parf to the /Scala Intellects, 

 may be regarded as a development merely of the orig 

 inal idea ; for the exposition of the new method could 

 not be complete without at least one perfect exam 

 ple of an inquiry legitimately conducted through all 

 the processes and ending in the discovery of the form ; 

 nor could such an example be exhibited without a 

 specimen of the &quot; historia naturalis et experimentalis 

 qua? sit in ordine ad condendam philosophiara,&quot; in 

 reference at least to that one subject. But the matter 

 to be contained in the first and fifth was avowedly 

 extraneous to the main design ; and the addition of 

 these is most easily accounted for by supposing that in 

 prefixing the first, Bacon meant to make a place for 

 the Advancement of Learning and for a variety of mis 

 cellaneous works not bearing on natural philosophy ; 

 and in interpolating the fifth, for sundry philosophical 

 speculations which his studies had suggested to him, 

 and which he regarded as guesses worth preserving ; 

 though, being no better than &quot; anticipationes mentis,&quot; 

 conclusions derived through an imperfect logical 

 machinery from imperfect knowledge, they were to 

 be looked upon as provisional only, and by no means 

 as specimens of the PhilosopMa Secunda. 



If there be any truth in this conjecture, the pieces 

 which I have mentioned have a fair claim to a place 

 among the Prodromi, and might follow the preface. 

 In deference however to Mr. Ellis s judgment I have 



