GORIZIENSE. 



21 



Observ. I, Ex centum granis huins terrae 

 fub tegula uftulatis, remanent grana feptua- 

 gintrTOdlOj quam iadluram fola fere aqua 

 conftituit, vit eius tofiura in vafe claufo 

 demonftrat. 



Corol Obfervatio ponderis diminnti poft: 

 tofturam in examine cpiusque terrx uti- 

 liter, inmineris vero neceffario adnotan- 

 da eft; fic enhyi difcimus quanta aqux 

 copia ah iiljs abforberi, & quouf^ue valor 

 metallicgs in oipni ininera concentrari 

 in igne queat, 



Qsserv,, II. Siccus pulvis igne toftus fatu- 

 rationem rub?di,nem, aqua v§rQ humedatus 

 maiorem duritiem acquirit. 



CoroL i. Argiltamolles funt, flexiles, glu- 

 tinoftf. Cor^fumpto fooc glutine perit 

 plaftjca vjrtus , & ad iadqlem teme fili- 

 ceas proxime accedunt, 



CoroL 2* Golor Argilta iq igne nunquam 

 manetidem, £andem caloris iputatio- 

 nem fubeunt miner» plurimas, ac prx- 

 fertitii martiales, 



0 3 s e r v. III. In igne durior evadit, & muta- 

 tur ii* fcoriam cinamomaco colore tindam, 

 quap in pulyerem redatfa, fere tota trahitur 

 a magnete, 



QoloL i. Crudarn terram magnes non at- 

 trahit, ergo vis attraftoria terrae ferriferx 

 B 3 



