384 
Obituaries. 
Am.  Jour.  Pharnx 
Aug.,  1876. 
3d.  Oliver  Evans"1  High  Pressure  Steam  Engine. — This  is  the  model  of  an  engine 
built  by  O.  Evans,  about  1804,  and  is  described  in  Galloway's  work  on  the  Steam 
Engine,  page  101. — London,  1827. 
4th.  Working  Model  of  a  Steam  Engine  built  by  W.  W.  Baldwin,  and  presented, 
by  him  to  the  Institute,  about  1832. 
OBITUARIES. 
Christian  Gottfried  Ehrenberg,  the  celebrated  naturalist,  died  at  Berlin,  Ger- 
many, June  28th,  in  his  82d  year.  He  was  born  at  Delitzsch,  April  19th,  1795,  and 
studied  at  first  theology,  afterwards  medicine  and  natural  science.  In  1820  he  ac- 
companied General  Minutoli  to  Egypt,  returning  from  his  oriental  travels  in  1826, 
while  his  colleague  and  friend,  Dr.  Hemprich,  died  during  the  voyage  at  Massaua, 
1823.  In  company  with  Humboldt  and  Gustav  Rose,  he  undertook,  in  1829,  a  journey 
to  Siberia  as  far  as  the  Altay  Mountains.  Since  1827  he  has  been  attached  to  the 
University  of  Berlin,  where,  commencing  in  1830,  his  various  celebrated  works  on 
the  infusoria  were  written,  through  which  he  disclosed  a  new,  hitherto  almost  un- 
known world  of  minute  creation.  On  the  occasion  of  the  semi-centennial  anniver- 
sary of  his  promotion  to  the  doctorate,  November  8th,  1868,  the  American  Pharma- 
ceutical Association,  in  common  with  many  other  learned  societies  of  the  civilized 
world,  offered  to  the  celebrated  explorer  their  felicitations 
Ehrenberg  retained  his  intellectual  vigor  and  pursued  his  favorite  studies  to 
the  last.  His  last  woik,  containing  microgeological  studies  on  the  minute  life  at 
the  depth  of  the  sea,  appeared  1873. 
William  Graham  MacIvor,  director  of  the  government  plantations  at  Ootaca- 
mund,  Neilgherry  Mountains,  East  India,  died  there  recently.  The  great  success 
from  the  very  beginning  of  the  transplantation  of  the  cinchonas  to  India  is  mainly 
due  to  his  excellent  judgment,  close  observations  and  sagacious  management. 
FKickiger  and  Hanbury  speak  of  him  that,  in  connection  with  the  Neilgherry  plan- 
tations the  name  of  him  must  always  be  remembered,  who,  by  his  rare  practical 
skill  and  sagacity  in  the  cultivation  and  management  of  the  tree,  has  rendered  most 
signal  services  in  its  propagation  in  India ;  and  Soubeiran  and  Delondre  recognize  his 
services  in  saying  :  "  Si  en  effet  Mr.  Markham  a  ete  la  tete  de  Tenterprise,  Mr.  Mac- 
Ivor  en  a  ete  assurement  le  bras." 
Albert  C.  Curtis. —  We  regret  to  learn  of  the  sad  fate  of  this  promising  young 
man,  who  was  murdered  about  the  last  of  June,  near  Laramie  City,  Wyoming 
Territory.  He  hailed  from  Ashland,  Ohio,  where  he  learned  the  drug  business 
under  the  instruction  of  Dr.  W.  K.  Foltz.  In  1871  he  graduated  at  the  University 
of  Michigan,  and  in  1 872,  at  the  Philadelphia  College  of  Pharmacy.  Subsequently 
he  served  as  Assistant  in  Cleveland,  which  city  he  left  a  little  over  two  years  ago, 
and  owing  to  failing  health  removed  to  Wyoming  Territory.  An  abstract  of  his. 
thesis  was  published  in  this  journal  1872,  p.  485. 
