628  •  Botany  Bay  or  Eucalyptus  Kino.  {AmDe°cU"iSarm 
In  spirit,  these  kinos  scarcely  dissolve,  leaving  abundant  granular 
residue  of  gum.  Supernatant  liquid  perfectly  clear.  These  kinos 
tend  to  be  perfectly  soluble  in  cold  water,  and  age  seems  to  have  but 
little  effect  on  them  in  this  respect.  They  are  like  the  Ruby  kinos  in 
not  forming  impalpable  powders,  being  even  tougher  than  the  mem- 
bers of  that  group.  They  form  gelatinous  precipitates  with  some 
metallic  acetates,  like  the  Ruby  group. 
c.  Turbid  Group : — 
E.  goniocalyx,  F.  v.  M.  E.  Stuartiana,  F.  v.  M. 
E.  hemiphloia,  F.  v.  M.  E.  viminalis,  Labill. 
E.  rostrata,  Schl.  E.  terminalis,  F.  v.  M. 
E.  punctata,  DC.  Angophora  lanceolata,  Cav. 
E.  odorata,  Behr.  A.  intermedia,  DC. 
E.  Gunnii,  Hook. 
The  above  yield  orange-brown  solutions. 
E.  corymbosa,  Sin.,  yields  solutions  up  to  the  brightest  ruby. 
E.  microcorys,  F.  v.  M.,  and  E.  metadata,  Hook.,  yield  solutions  of 
various  shades,  from  lemon-yellow  to  orange-brown. 
All  the  members  of  this  group  yield  turbid  solutions  to  spirit, 
which  require  long  standing  or  filtering  to  become  clear.  They  behave 
in  a  similar  manner  to  water,  but  become  clear  on  boiliug,  indicating 
catechin.  The  aqueous  solutions  of  the  alcoholic  extract  are  likewise 
turbid.  They  are  all  more  or  less  friable,  forming  impalpable  pow- 
ders usually  by  pressure  of  the  fingers.  Addition  of  acetate  of  lead  or 
copper  produces  only  a  very  slight  gelatinous  precipitate,  thus  divid- 
ing them  from  the  other  two  groups. 
Sub-division  of  the  Group. — E.  corymbosa  kino  is  usually  so  bril- 
liant in  color,  and  yields  such  rich-colored  tinctures  that  it  cannot 
well  be  mistaken  for  any  other  kino. 
E.  microcorys  and  E.  maculata  are  often  externally  much  alike,  but 
they  may  be  distinguished  (1)  by  the  facility  with  which  the  former  dis- 
solves in  water,  (2)  by  the  yellow  color  which  the  latter  yields  to  ether. 
E.  maculata,  E.  punctata  and  A.  lanceolata  possess  odors.  The 
essential  oils  which  cause  them  may  be  removed  by  ether. 
Definition  of  the  terms  "  Botany  Bay  Kino  n  or  ''Australian  Kino.,T 
Not  the  product  of  E.  resinifera. — I  propose  to  investigate  the  claim  of 
certain  species  to  be  yielclers  of  the  kino  which  for  over  one  hundred 
years  has  passed  under  one  or  other  of  the  above  names.  The  first 
published  allusion  to  this  kino  will  be  found  at  p.  233,  Journal  of  a 
