Am.  Jour.  Pharm.  \ 
November,  1898.  J 
Gleanings  from  the  Medical  Journals. 
573 
wood  the  Surinam  powder  is  distinguished  by  the  presence  of  stone 
cells  and  rosette-shaped  crystals  of  calcium  oxalate.  The  latter  are 
found  only  to  a  small  extent  in  Jamaica. 
360.  Quercus  alba  —  Cubical  crystals  (15  //,),  in  crystal  fibres  20  jjl 
wide ;  large  groups  of  characteristic  stone  cells  ;  long  bast  fibres, 
which  are  40  /jl  wide ;  colorless  or  light  yellow  parenchyma  stained 
deep  black  with  Fe2Cl6. 
361.  Sambucus. — Small  crystals  in  calyx.    See  No.  474. 
362.  Uva  Ursi. — See  No.  37. 
363.  Vanilla. — Crystals,  tetragonal  and  prismatic  (7  x  17;  10  x 
25  I  7  x  35  /*)  or  needle-shaped  (200-300  /jl  long);  characteristic 
papillae  upon  inside  of  pericarp ;  characteristic  broadly  ovate,  brown 
to  brownish-black  seeds  with  reticulate  walls ;  lignified  elements 
stained  bright-red  with  phloroglucin ;  starch  not  found  in  ripe  fruit. 
Mexican  Vanilla  has  in  connection  with  the  elements  of  the  fibro- 
vascular  bundle,  a  characteristic  netted-pored  parenchyma  cell,  dis- 
tinguishing it  from  the  other  vanillas.  Vanilla  distinguished'-from 
admixtures  with  Tonka  by  latter  containing  starch. 
y.  Crystals  in  raphides. 
364.  Vanilla.    See  No.  363. 
b  Crystals  in  fine,  sand-like  particles. 
365.  Cinchona. — Contains  small  amount  of  starch.    See  No.  299. 
366.  Quassia  (Jamaica). — See  No.  358. 
367.  Tobacco. — Characteristic  secreting  and  non-secreting  hairs  ; 
sklerenchyma  fibres  ;  stomata  characteristic. 
{To  be  continued.} 
GLEANINGS  FROM  THE  MEDICAL  JOURNALS. 
By  Ci/Bment  b.  Lowe,  M.D. 
THE  REMOVAL  OF  WAX  FROM  THE  EAR. 
The  Indian  Lancet  for  June  16th,  quoting  the  Union  Medicate  du 
Canada  for  January,  states  that  Albert  Ricci,  of  Turin,  has  ascer- 
tained that  the  solution  of  hydrogen  dioxide  possesses  the  peculiar 
quality  of  rapidly  disintegrating  the  obstructive  masses  of  cerumen 
in  the  ear.  It  suffices  to  pour  into  the  meatus  auditorius  externus  a 
small  quantity  of  the  solution,  and  leave  it  for  a  few  moments  in 
contact  with  the  ceruminous  plug.  The  latter  is  then  most  easily 
and  safely  removed  by  syringing  with  water,  even  though  it  were  a 
hard  concretion. 
