.  .  .  Tentaminum  Chemicorum  .  .  .     Tomus  Secundus.     Nunc  primum  in  lucem
editorum,  cum  Annotationibus.  .  ..
Cum  Privilegio  S.  R.  M:tis  Suecias  &  S.  R.  M:tis  Polonicae  ac  Electoris  Saxon.  .  ..
Pp.  xi.  [i]  194  [10].     Editions  appeared  in  1706,  1712,  8°.
Hjarne  was  born  at  Sqvoritz,  Ingennanland,  in  much  distinction    on    account  of    the  reputation

Sweden,  20  Dec.,    1641,    of  good   family.      After  he  had  acquired  especially  in  chemistry.     He  was

studying  medicine  at  Upsala,  where  he  sustained  a  appointed  premier  physician  to  the  King,  president

thesis  in  1662,  he  went  to  London  and  was  admitted  of  the   Medical  Council,    director    of    the    Royal

to  the  Royal  Society,  2  Dec.,  1669,  proceeded  to  Laboratory  which   he   had    succeeded   in   getting

Paris  and    devoted    two  years    to    the  study    of  established   in   Stockholm   and   in  which    he    did

anatomy,  physics  and   chemistry,  and   is   said   to  much  investigation.     In  order  to  familiarize  himself

have  taken  the  degree  of  M.D.  at  Angers.     On  his  with  the  best  metallurgical  processes  he  made  two

return  to  his  own  country  he  was  received  with  visits  to  Germany,  and  was  afterwards  made  vice-


4o8


HJARNE— HOFFMANN


HJARNE  (URBAN).     Continued.
president  of  the  Council  for  Mines.  He  was  a
member  of  the  Commission  appointed  by  Charles
XT!,  to  examine  the  validity  of  the  process  by
which  Paykull  professed  to  convert  lead  into  gold,
and  of  the  reality  of  which  he  seemed  to  be  con-
vinced.
After  a  long  and  laborious  career  he  died  22
March,  1724,  at  Stockholm,  aged  83.
Ada  Lipsiensia,  1684,  p.  79  (review  of  the
analysis  of  mineral  waters) ;  1714,  p.  128  (review
of  the  Ada  et  Tentamina).
Moller,  Bibliotheca  Septentrionis  eruditi,  Hamb.
&  Lips.,  1699,  pp.  238,  429.
Die  Edelgeborne  Jungfer  Alchymia,  1730,  p.  224.
