304 
Rosengarten  &  Sons. 
Am.  Jour.  Pharm. 
July,  1904. 
Piperine  was  made  in  1833;  Mercurials  and  Strychnine  in  1834. 
Veratrine  had  considerable  sale,  and  was  made  in  1835  ;  and  Iodide 
of  Lead,  Deuto  and  Protoiodide  of  Mercury,  Iodide  of  Iron  and  Iodide 
of  Sulphur;  Codeia,  Bismuth  and  Silver  salts  were  made  in  1836. 
On  February  15,  1836,  the  firm  name  became  Geo.  D.  &  S. 
Rosengarten,  but  this  only  lasted  until  March  10th  of  the  same  year. 
In  1835  N.  F.  H.  Denis,  a  young  Frenchman,  a  pupil  of  the  great 
chemist  Robiquet,  was  employed  as  chemist,  and  on  January  1, 
1840,  became  a  partner,  the  name  of  the  firm  becoming  Rosengar- 
ten &  Denis,  and  continued  as  such  until  1853,  when  Mr.  Denis 
withdrew. 
Samuel  G.  and  Mitchell  G.,  sons  of  G.  D.  Rosengarten,  were 
then  admitted  to  partnership,  and  the  firm  name  changed  to 
Rosengarten  &  Sons. 
In  i860  H.  B.  Rosengarten  and  Adolph  G.  were  admitted  to  part- 
nership. The  latter  enlisted  in  the  15th  Pennsylvania  Cavalry 
(Anderson  Troop),  rose  to  the  rank  of  Major  U.  S.  V.,  and  was 
killed  in  a  cavalry  charge  at  the  battle  of  Murfreesboro,  Tenn., 
on  the  29th  of  December,  1863,  on  the  twenty-fourth  anniversary  of 
his  birth. 
George  D.  Rosengarten  retired  from  business  in  1879,  after  fifty- 
six  years  of  active  business  life.  He  was  a  director  of  the  Mechan- 
ics Bank  for  more  than  fifty  years,  and  of  the  Pennsylvania  Railroad 
for  a  number  of  years  ;  upon  his  retirement  from  business  he  declined 
re-election  to  the  boards  of  both  of  these  corporations.  He  died 
March  18,  1890,  at  the  age  of  eighty-nine. 
Frank  H.  Rosengarten  was  admitted  to  the  firm  in  1879.  Mitchell 
G.  died  in  1898,  and  Samuel  G.  and  Frank  H.  Rosengarten  retired 
from  the  business  the  same  year.    The  firm  was  then  continued  by 
H.  B.  Rosengarten  and  his  sons,  George  D.  and  Adolph  G. 
In  1 90 1  the  business  was  incorporated  under  the  laws  of  the  State 
of  Pennsylvania,  with  the  title  of  Rosengarten  &  Sons,  Incorporated. 
H.  B.  Rosengarten  is  president,  George  D.  vice-president,  and 
Adolph  G.  secretary  and  treasurer,  who,  together  with  Joseph  G., 
Jr.,  and  Frederic  Rosengarten,  constitute  the  board  of  directors,  all 
of  whom  take  an  active  part  in  the  management  of  the  business. 
