200 NOVUM ORGAN UM. 



instantife solitaries sunt prismata, gemma? crystalline, 

 qua? recldunt colores, non solum in se, sed extcrius su 

 pra parietem. Item rores, &c. Ista? enim nil liabent 

 commune cum coloribus fixis in floribus. gemmis colo- 

 ratis, metallis, lignis, &c. prccter ipsum colorem. Unde 

 facile colligitur, quod color nil aliud sit quam modifi- 

 catio imaginis lucis immissa? et recepttv : in priore ge- 

 nere, per gradus di versos incidentia? ; in posteriore, per 

 texturas et schematismos varies corj)oris. Istoc an tern 

 instanticB sunt soli f aria qnatenns ad similitudinem. 



Rursus in eadem inquisitione, vena* distinctoe albi et 

 nigri in marmoribus, et variegationes colorum in flori- 

 bus ejusdem speciei, sunt instantifv solitaries. Album 

 enim et nigrum marmoris, et macula} albi ct purpurei 

 in floribus caryopliylli &quot; , convcniunt fere in omnibus 

 pnvter ipsum colorem. Unde facile colligitur, colorem 

 non mnltum rei liaberc cum naturis alicujus corporis 

 intrinsecis, sed tantnm situm esse in positura partium 

 crassiori et quasi meclianica. Ista^ autem imtantia 

 sunt solitarife, quatenus ad discrepant! am. Utrunque 

 autem genus, imtcDitiax solitarias ap])ellare consuevi- 

 mus, ant/m wff.v 47 , sumpto vocabulo ab astronomis. 



XXIII. 



Inter pracrogativas instantiarum, ponemus secundo 

 loco inxtantia.fi nti&amp;lt;imnt&amp;lt; &amp;gt; s**. Ku; sunt, in quibus natura 



out the Composition of Light. Cf. 48 Instances in which one quality 



Herschel s Discourse, 18 and 275. vanishes as another is induced, or 



Bacon s account approaches the in which one quality decreases as 



truth, and shews great shrewdness. another increases. Water changing 



46 C (try nphy lion, Kapvo&amp;lt;f&amp;gt;v\\oi&amp;gt;, into Steam, or into Ice, would be a 

 the Clove- Gillyflower. fair example. This class of Instances 



47 F&rince. I have met with no- approaches very nearly to the in- 

 thing that throws light on this word, vestigation of Latent Process. Play- 

 Can it refer to such irregularities as fair, Encycl. Brit. (Diss.iii. p. 462) 

 the old astronomers observed, and says of these instances, &quot; Such are 

 could not reduce into agreement the Shells which we see so perfect 

 with their system ? in figure and structure in Lime- 



