m 
ADDENDA QUADAM, 
p. 2.91. pofl. 1. ult. 1. 
Arrntr cuidam nlgrte, pulverem pyrium mentlenti,cum quartlf 
aibigranulisperm-jla in valle puracicr Coraubienus NU-ua' 
kcn (a t]ua etiam ^Itnacznitx numine irjigntta Jvii J ai 
ripas rivi cujusdam ubvitr , magneti ohfequrujer, in pu 'v.rcrn 
tcnuijfi num facile comminuand/r & fatis po-iderufir (-^.41 
427,1000) preeter ferrum metallum fui generis inhetrere 
nuper fujpicaius , & nonnullis exi erimeniis comprobare 
annifus eft Cl. Giegor ( chemifih. Annal. 179I. Vol. !• 
p. 40. &c. 103. hc. Vol. 1. p. 55. j fulvitur autem acido 
vitriuLi quod ameihyfii inde tinSum nancilcitur , atque eX 
eo per lixivium cezrulei Berolinenf s forma pulveris albi, pt r 
tinduram vero gallarum forma pulveris ex rubro auranld 
praecipitatur , & fua pmfentia lixivium iilud impedienti rn « 
quo minus ferrum ctrrulei berolinenfis facie pra-epitet t 
At donec catalogo metallorum injeratur plura adhuc ex' 
pedare juvat experimenta. 
p. 362. pod. 1. ult. 1. 
Argentum rubrum , fallent in Hercyniae & Saxoniae fodinis 
obvium n;hil arfenici , ai ftibium ( VjJ® 6’ plus) concinere , 
accurata , docent Virorum Clarijjimoruni Klaprothi (berg^ 
meenn, Jottrn. 1792. Vol. I. p. I4T. ikc. ) & Wetlrumb 
( ehem Annal. 1792. Vol. ,1. p. Jfcrittinia, 
