146 
Dr.  Friedrich  Hoffmann. 
A.m.  Jour.  Pharm 
March,  1905. 
which  were  published  chiefly  in  the  Popular  Science  Monthly.  He 
also  issued,  in  1872,  a  work  entitled  "A  Manual  of  Chemical 
Analysis  as  Applied  to  the  Examination  of  Medicinal  Chemicals  "  ; 
of  this  a  third  edition,  in  which  the  present  writer  collaborated, 
appeared  in  1882.  For  two  years,  1 881-83,  Hoffmann  served  as 
a  chemical  expert  on  the  New  York  State  Board  of  Health. 
To  the  changes  which  time  had  effected  in  the  practice  of  phar- 
macy, involving  a  departure  from  the  conservative  and  strictly  pro- 
fessional  methods  of  the  school  in  which  he  had  been  trained,  Dr. 
Hoffmann  could  never  become  completely  reconciled,  and  many  of 
the  duties  which  this  pursuit  entailed  became  to  one  of  his  tempera- 
ment and  culture  increasingly  onerous  and  uncongenial.  For  this 
reason  he  was  induced  in  1882  to  dispose  of  his  business  and  estab- 
lish a  new  pharmaceutical  periodical,  which,  under  the  title  of  the 
Pharmaceutische  Rundschau,  he  conducted  with  marked  ability  and 
success  for  a  period  of  thirteen  years,  and,  in  a  somewhat  altered 
form,  it  still  continues  to  be  issued  as  the  Pharmaceutical  Revieiv. 
As  the  writer  has  stated  on  a  previous  occasion,  when  reviewing 
Dr.  Hoffmann's  service  to  pharmacy : 
In  the  field  of  journalism  he  not  only  found  a  congenial  occupation,  but  the 
resources  of  his  mature  and  cultured  mind,  his  broad  scientific  training,  and 
his  extended  knowledge  of  practical  affairs,  together  with  his  ability  to  form 
and  express  correct  opinions  regarding  current  problems  and  events,  all  served 
to  impart  to  his  writings  a  distinctive  character  and  a  literary  value  which  will 
be  appreciated  and  admired  by  all  reflective  students  who  peruse  them  for 
generations  yet  to  come. 
At  the  close  of  1895  Dr.  Hoffmann  decided  to  discontinue  his 
journalistic  labors  and  seek  rest  and  retirement  in  his  native  land  ; 
but  it  was  contrary  to  his  nature,  and  incompatible  with  a  lie  of 
such  intense  activity,  to  remain  for  any  length  of  time  without  some 
form  of  occupation.  With  the  opportunities  afforded  him  by  the 
large  libraries  of  the  Continent  he  soon  became  engaged  in  histori- 
cal researches,  and,  in  collaboration  with  Dr.  Gildemeister,  of  Leip- 
zig, he  produced  the  very  comprehensive  work  on  the  essential  oils, 
entitled  "  Die  aetherischen  Oele."  This  was  issued  in  1899,  and  may 
be  regarded  as  a  most  worthy  and  crowning  effort  of  his  literary 
career. 
On  the  occasion  of  the  Jubilee  of  the  American  Pharmaceutical 
Association,  which  was  celebrated  at  Philadelphia  in  the  summer  of 
1902,  Dr.  Hoffmann  was  invited  to  deliver  an  address,  and  in  re- 
