174 VSrS LECIS BECREMEKTI CALORIS cet. 



ne facillime eniitur fcquens aeqintio : I{d-x) — J[c—x)-rr. 

 nla-nl{a—b) Si crgo rt " . (<r— Z») " iiiuciuum cft — A , crit 



5) c-f-i = A» confcq. 



^) X ^ 1-1- (l- E. I. 



§. 2. Non inutilc cric , l\ cxcmplis qnibusdam ex 

 obfcruationibus mcis cx inquifitionc citat;i m lcgcm de- 

 crcm. Cal. pctitis hanc f()rmulam illu^traucro. 



Ponatiir Expcrimcnto X. 



1) d ~ 175 , o gr. et decrcmc'ntam quinquc mi- 

 nutis primis fcil : ^^13, 5 , tcmpcrics acris hoc tcm- 

 pore conlbns ~ 22 , 5 , crit ^—152, 5 ct (a — b) 

 — 139, o. obfcruatur poft 125 min. pr : tcmjKrics a- 

 quae f =: 4.0 , o crit hinc ctiam wrz: 25. Hrit crgo 

 n l a — n I [a — 6) — zs l 1$!^ —25/1390—1. 00 

 63750 Idganthmus numcri 10 , 14. qui crt — A , erit 

 ergo .v~ 25 , 2. Si crgo tcmpcries aeris 25 , 2. gr. 

 Therm. Fahr. conftans fuflct pcr 125 min : pr at]ua 

 obtinuidct cundcm gr:idum iquadragcfimum qucm obtinuit in 

 ■variabili aiiris tempcric. fit 



2) </, ^ itcm a \t antca , c ponatut 1:125 ct 

 « — 55 erit .V— 25 , I fcrme. fit 



3) r/ , Z» ct a rurfus vt antea f zr 30 ct « := 

 33 , crit .v= 24., 4. gr. 



§.3. Ex cxpcrimcnto X cit. 1. vidcrc cft , dimidi- 

 am circitcr libram aquac in tcmpcric acris 25 gr. quatii- 

 or hons ct (luadraginta minutis piimis :\ tcmpcric 175 

 gr. ad tcmpciicm 25 gr. pcrucniflc. Si crgo 5 Ctiue- 



u.uii 



