^76 NOYL M OKGANUM. 



ant impediat ; cum tamen in eodem genere nna aliani 

 domet ct extingnat: veluti, Inx soli s, Incem cicindelse; 

 sonitns hombanhr, voeem ; iortior odor, dclicatiorem ; 

 intcnsior calor, remissiorem ; lamina ferri interposita 

 inter inagnetein et alind ferrnm, operationem mag 

 net is. Verum do his qnoque, inter adminicula induc- 

 tioni*, erit proprius dicendi locus. 



XLIV. 



Atque de instantiis, &amp;lt;ju;v juvant senstini, jam dictum 

 cst : qua- |)raH-i[)ui usus sunt ad partem informativam 54 

 Informatio enim iucipit a sensu. At universum nego- 

 tium desiuit in o|)era : atijue (|uemadinodum illud 

 princijiium, ita Imc lini^ rei c st. Se(|uentur itaquc in- 

 stantia pnrci[)ni usus ad /nn-tcin ojiiTdfirtiin. Etc ge- 

 nere dua- sunt, numero septem : &amp;lt;|iias uuiversas, geiie- 

 rali iKiiuiue, utxtdulinx /trfH tica* appellarc consucvimus. 

 O/&amp;gt;cra(ii (f autem //^//V/.v vitia duo, totidenKjue dignitates 

 instantiarum in geuere. Ant enim fallit operatic, ant 

 oiierat niiuis. Fallit dpt-ratio uiaxinie (pra-sertim post 

 diligeiitem naturarum iiujuisitionem) proptcr male de- 

 terminatas i t mensuratas corpormn vires ct actioues. 

 N ires autem et actioues corpornm circumscribuntur ct 

 meiisurautur, ant jier spatia loci, ant per momenta tcm- 

 jioris, ant per uuioiiem (jnanti, ant per pro- doniinantiam 

 virttitis : (|iuu (jiuitiior, nisi 1 ueriiit jirobe ct diligenter 

 pensitata, ernnt fortasse &amp;gt;cienti;v spcculatione ([nidcni 

 pulclinr, sed opc-n- inactivip. lustantias vero quatuor 

 itidein, (jiia 1 hue referuntnr, nuo nomine instantias )na- 

 thematicax vocamns, et instiuitiax mcnsurce. 



: 4 We come now to the third di- o})CTativa,&quot; or the Mathematical In- 

 vision of the Prerogatives of In- stances ; anil (2) those which re- 

 stances &quot; Instances tending to lieve &quot; praxis&quot; from too great a load 

 Practice:&quot; these are subdivided of facts, and from being too labori- 

 under two heads, (i) Those which ous; which he terms propitious or 

 correct the mistakes of the &quot; pars litna-olvit Instances. 



