MATHEMATICO-PHYSICA. 31 



porum folidorum expnnfioncm per caforcm fa- 

 mebantur, ilia quoquc pertinent , quae duce 

 viro expert. Richcero a Bimu-nthal, in 

 Hungiiria laaa Him, ad indagmdam justani vir* 

 garum tcric..nim longitudinal?, quarinn ope ba- 

 ftofl ill ins iiiftwitTctur mcnfiiruio ( i5\ Qucm 

 in iincm, duo lapidcs, unilbrmiccr cacfi , muro 

 fermminabantur, cum quorum alccro divilio in 

 fcala ar^cna-a conjungebatur ; ad akcram V.TO, 

 retinacuii ope, virga expioranda ica fixa.ccne h a 

 ttir , uc ejus forcisfimu concru lapidcm preslio 

 fine ullo esfec effectu , atquc igicur ejus expanfio 

 ad imam tantummodo rancm proccdere posfec. 

 Virga poncbacur in incili, ex lamina ferrea due- 

 to, in pontibus mccallicis atque ad unnm ejus 

 partem nonius ndplicabatur, qui ad fc^fati ar- 

 genteam adpofitus, cpe niicrv>scopn expanOo- 

 nein indicabac ad 0,00001 paitem ulnae. Jim 

 incili , gla.ie con-tufa implcto, virgreque tem- 

 pera ufci ad typhram ducta ope 3 thenrometra- 

 rum^ nonius legeoarur. Glacies (enfim rcniim- 

 quc aeris temperacura atque aqua ccpida (iipcr 



Rrfatfim liber fi? im jahrc if?io bet Tors in f'n* 

 ton tt&iberka.itif<tf geincsjette bafis vom DireUtur 

 far Oes/trr. lauJeuti'mesJ'bng !i rn (lencrttl K ch**e 

 von U i m i e n c h a I, in diario . Monatliche Carrespondt m 

 vom Frcib. voa Zach 1812. Januar Turn, 25, 

 45 5*. 





