Am'Feb.?if94arm"}    United  States  Forestry  at  the  Fair.  71 
alcohol,  a  current  of  carbon  dioxide  passed  through,  and  the  pre- 
cipitated sodium  carbonate  filtered  out. 
A  portion  of  the  alkaline  filtrate  was  mixed  with  about  five 
volumes  of  water,  the  result  being  a  turbid  fluid  of  a  reddish-ochre 
color.  This  was  agitated  with  ether,  which  removed  the  substance 
causing  the  turbidity,  forming  a  red-brown  solution,  which  on  evapo- 
ration, left  a  red-brown,  transparent,  soft,  resinous  residue,  having 
an  odor  somewhat  resembling  that  of  the  original  oil.  This  residue 
slowly  hardened,  in  thin  layers  forming  a  varnish-like  film. 
The  alkaline  fluid,  after  having  been  well  shaken  out  with  ether, 
the  operation  being  repeated  several  times,  was  of  a  brownish-red 
color,  and  very  nearly.clear.  It  was  acidified  with  dilute  sulphuric 
acid,  which  caused  a  yellowish-brown  turbidity,  the  substance  to 
which  it  was  due  soon  largely  coagulating  into  soft  red-brown 
masses.  The  whole  was  shaken  with  ether,  which  readily  dissolved 
the  red-brown  masses,  forming  a  red-brown  or  brownish-red  solu- 
tion. The  acid  fluid  became  clear  and  nearly  colorless.  The 
ethereal  solution  left,  on  evaporation,  a  transparent,  resinous  sub- 
stance, at  first  soft,  but  slowly  hardening,  with  little  or  no  odor. 
UNITED  STATES  FORESTRY  AT  THE  FAIR. 
By  Joseph  Crawford,  Ph.G. 
Read  at  the  Pharmaceutical  Meeting,  December  19,  1893. 
Forestry,  in  the  proper  sense  of  the  word  nowadays,  means  the 
study  of  forest  trees  in  their  direct  relation  to  man,  and  the  care, 
protection  and  perpetuation  of  them  on  their  native  as  well  as  culti- 
vated grounds. 
As  Mr.  Fernow,  of  Forestry  Association,  says,  "  The  forest  pri- 
meval is  our  most  valuable  inheritance. 
"  It  is  the  ready  cash  of  Nature's  bountiful  promise  for  our  future. 
Of  all  the  natural  resources  reserved  for  our  use  it  is  the  most 
'  directly  useful,  for  in  the  forest  ready  to  hand  without  further  exer- 
tion than  the  mere  harvesting,  is  the  greatest  variety  of  material 
applicable  to  the  needs  of  man,  the  means  to  satisfy  every  direct 
want  of  life. 
"And  if  left  to  herself,  without  interference  of  man,  Nature  would 
keep  entire,  with  few  excepted,  all  localities  under  forest  cover. 
"  It  is  only  when  man  interferes  that  the  tendency  of  Nature  is 
either  frustrated  or  turned  to  advantage  for  the  objects  of  man.  If 
