472 
Varieties 
J  Am.  J^ur.  Phakm. 
t     Oct,  1, 1873. 
the  above  name,  has  been  made  by  the  writer  from  a  formula  given  him  by  Mr. 
Hassard,  of  Philadelphia.  It  \%  mide  as  follows :  R.  Fresh  ega^,  No.  iv  ; 
lemon  juice,  q  s.  Place  the  eggs  in  a  suitable  vessel,  and  ponr  over  them  suf- 
ficient lemon  juice  to  cover  them,  and  let  the  whole  remain  for  24  or  48  hours. 
Then  pass  the  whole  through  a  strainer,  and  add,  with  agitation,  the  following, 
and  in  the  order  given  :  To  the  lemon  juice  and  eggs  add  an  equal  volume  of 
honey,  cod-liver  oil,  and  brandy  or  whisky.  The  whole  forms  a  permanent 
emulsion,  and  will  keep  good  during  the  summer  months  for  a  month,  and 
longer  in  cooler  wealher.  The  taste  of  the  oil  can  be  completelv  covered  by 
the  addition  of  a  few  drops  of  oil  of  wintergreen,  or  oil  of  bitter  almonds.  This 
mixture  is  pleasant  to  take,  and  a  valuable  therapeutic  agent. 
P.  S. — Glycerin  may  be  substituted  for  the  honey.  E.  S.  W. 
—  Cincinnati  Lancet  and  Observer,  Sept.,  1873. 
Nero  and  Rapid  Process  for  Generating  Sulphuretted  Hydrogen. — W.  Skey 
{Chemical  News)  describes  a  method  which  is  said  to  be  simple,  expeditious 
and  economical,  and  which  has  been  used  by  the  author  for  over  two  years, 
giving  entire  satisfaction  :  Fragments  of  galena  and  granulated  zinc,  in  pro- 
portions of  about  1  to  1,  are  well  mixed  and  put  into  a  small  apparatus  of  the 
kind  generally  in  use  for  the  preparation  of  this  gas,  and  hydrochloric  acid 
diluted  with  water  (I  to  20  or  so)  poured  upon  them.  Sulphuretted  hydrogen 
is  instantly  given  off,  and  its  evolution  is  found  to  proceed  energetically,  regu- 
larly and  continuously  for  a  great  length  of  time — a  length  proportionate  to 
that  of  the  quantity  of  material  used  and  its  proper  adjustment  as  to  parts.  A 
little  hydrogen  accompanies  the  gas  named,  and  traces  of  hydrochloric  acid. 
The  acid  is,  however,  easily  removed  by  allowing  it  to  pass  through  a  little 
carbonate  of  lime  before  use,  while  the  presence  of  hydrogen  can  have  no  bad 
effect  for  all  ordinary  purposes.  After  a  sufficiency  of  the  gas  has  been  used 
it  is  best,  in  ordinary  cases,  simply  to  wash  the  galena  and  zinc  with  water, 
when  the  apparatus  is  ready  for  further  use  at  a  moment's  notice;  but  when 
quantities  are  required  in  rapid  succession  a  form  of  apparatus  maybe  used 
which  allows  the  separation  of  the  acid  liquid  from  the  undeenmposed  sub- 
stances within  itself,  when  the  delivery  tube  is  closed. — Canad.  Pharm.  Jour., 
1873,  July. 
How  does  the  Color  of  Mowers  Vary? — An  amateur,  M.  Hueghe,  had  some 
primroses  which  he  transplanted  into  abetter  soil,  and  the  result  was  that  from 
yellow  the  flowers  became  an  intense  purple.  By  a  similar  modification,  and 
by  mingling  with  the  soil  certain  substances,  one  may  vary  the  color  of  plants. 
Charcoal  deepens  the  tints  of  dahlias,  hyacinths  and  petunias  ;  carbonate  red- 
dens hyacinths;  and  the  phosphate  of  sodium  changes  in  various  ways  the  hues 
of  some  plants.  It  is  known  that  a  heathery  soil  makes  the  green  hydrangea 
red. — Journ.  Applied  Chem.,  September,  1873. 
Certain  Constituents  of  Poplar  Buds. — J.  Piccard  — AloDg  with  chrysin  the 
author  has  come  upon  three  other  bodies— the  ethereal  oil  of  poplar  C5  Hg  ;  a 
mixture  of  salicin.  populin  and  tectochrysin,  C16H12O4  ,  a  higher  homologue  of 
chrysin. — Chem.  News,  Aug.  22,  1873. 
