^""'jniyl'issL™'}     PropcvUes  and  Uses  of  Acaroid  Resin.  329 
"  The  operation  that  has  been  most  prominently  observed  is  the  dimi- 
nution of  excessive  and  even  colb'quative  secretions  and  excretions. 
It  is  not  known  that  it  possesses  any  expectorant,  diuretic,  diaphoretic 
or  emmenagogue  effects,  nor  have  I  observed  any  resolvent,  cholagogue 
or  antipsoric  operations.  Nor  does  it  appear  to  be  euphrenic  "  [exhil- 
arant],  ^'narcotic  or  antisbestic"  [diffusible  stimulant].  "  From  anal- 
ogy with  other  resins  I  am  inclined  to  think  it  is  adenagic  "  [a  term 
used  by  Dr.  Tully,  under  precise  definition,  to  denote  the  operation 
usually  and  vaguely  called  alterative],  but  gradual  and  permanent  in 
its  effects,  and  bearing  the  same  relation  to  other  adenagics,  that  more 
quickly  produce  their  effects,  that  tonics  do  to  antisbestics  "  [diffusible 
stimulants].  "  The  operation  of  this  article  is,  however,  full  as  well 
and,  indeed,  better  explained  on  the  supposition  that  it  is  styptic  as 
that  it  is  adenagic.  But  it  possesses  none  of  the  sensible  properties  of 
styptics.  The  diseases  in  which  it  has  proved  serviceable  are  capable 
of  being  relieved  by  adenagics  and  by  styptics. 
Dr.  Tully  mentions  the  following  pharmaceutic  preparations  :  Pow- 
der with  loaf  sugar,  Pulvis  cum  saccharo  purificato  (dose,  9i  to  oSs) ; 
pills,  made  up  of  one  part  each  of  the  powder  and  camphor,  with 
eight  parts  of  white  soap ;  and  the  tincture  made  by  macerating,  for 
a  week,  four  troyounces  of  the  powder  in  a  pint  of  alcohol  (sp.  gr. 
'0'835),  and  decanting  from  the  undissolved  residue. 
Of  the  tincture  he  says :  This  is  a  saturated  tincture,  dark  brown 
or  almost  black,  deep  crimson  by  transmitted  light.  Its  taste  is  slightly 
sweetish,  slightly  styptic  (does  this  depend  on  the  alcohol?),  resembling 
the  compound  tincture  of  styrax  benzoin.  The  medium  dose  is  a 
ffuidrachm  four,  six  or  eight  times  a  day.  An  elegant  draught  may 
be  made  by  adding  a  little  essential  oil,  as  of  gaultheria,  and  syruj)  of 
sugar  to  the  taste. 
"Therapeutic  Applications, — It  is  used  in  New  Holland  for  dyspep- 
sia. When  dyspepsia  is  attended  with  anorexia,  cardialgia,  and  ten- 
dency to  diarrhoea,  I  have  done  much  good  with  this  resin.  I  con- 
sider it  superior  much  to  myrrh.  It  is  more  especially  adapted  to  cases 
attended  Avitli  diarrhoea  gypsata.  (Good.)  In  diarrhoea  fusa,  biliosa, 
mucosa  and  serosa  this  resin  is  useful.  Moderate  cases  it  will  cure; 
severe  and  obstinate  cases  w^ill  require  opium,  likewise,  in  conjunction. 
I  have  known  cases  of  idiopathic  diarrhoea,  which  had  gone  on  tAvo  or 
three  Aveeks  under  doses  of  one  grain  of  opium  every  two  hours  with- 
out being  fully  restrained,  promptly  cured  by  giving  a  fluidraclim  of 
