506 DE BJROMETRO , CVirS SCAtA 



6) Ad mnniis fit vas aliquod ct collccctiir fiib orifi- 

 cio H , c]iiod iipcri.itiir , ct fimiil L ct dclccndct mcrcu- 

 rius iii B A H ad altitudiiicm baromctricani ct cffliiet cx 

 H , mcrcurio in vafc B E vfquc ;id lupcrficicm g h fub- 

 fidcnte. 



7) Hoc f;i(flo notctur tcmpus ct v;ifc N O mcrcuri- 

 us cic(flus cxcipi;itur , qui pcrpctuo cclcritiitc altitudini 

 barometric;ic coniun(fl;ic cum altitudinc G C dcbita fluct 

 in vacunm Baromctri. Aititudo cnim G C lcmpcr ca- 

 dcm lcniiitur , dum ca panim mutata orificium canalis 

 E G fcparctur a liipcrficic g h et hinc acr liibintrct vas 

 E D F et portioncm mcrcurii ex illo expcllat , vt altitu- 

 do C G rcllituatur. 



8) Poft quadrantcm horac inquiratur in pondus mcr- 

 •ciirii cicdi , crit qiiadratum quantitatis chiplac (§. 22.) ad 

 quadratum quintitatis hic ciic1;ic , vt altitudo mcrcurii 

 (§ --.), nd altitudincm a qua quantitas chipla polkrioc 

 pcndct. Si nunc altitudo G C llibtialwtur ab hac inucn- 

 ta , inucnictur altitudo b;iromctrica , fi ncmpe prcdio ac- 

 ris uou mutata fuit intcrca. 



§.25) Qiiando idcm cxpcrimcntum codcm apparatu 

 repetitur in altiori loco , c. j;. ;iliillimo montc vel turri , 

 inucnictur eadcm ratioiic quantitas clapla iii ahiori loco 

 conlcqucntcr altitudo baromctrica. 



§, 26. Supponilur tcmporc cxpcrimcnti altitiidincm 

 baromctricim candcm maucrc. Sed vcrofunilc cft , li cti:im 

 varict , nihiiominus tali apparatu mcdi;iin baromctii alti- 

 tudincni iiiiicniri poflc. Licct cnim alntiido baroinctri in 

 B A ctiam mutciur , ct ob hanc rcm m.ichina nollra ;id- 



plica- 



