AmDec.?if9h3arm}  Revision  of  the  U.  S.  Pharmacopoeia.  597 
title  for  Ferric  Phosphate  and  Ferric  Pyrophosphate,  and  serves  well 
to  indicate  that  these  are  not  the  pure  chemical  salts  that  the  names 
previously  adopted  seemed  to  indicate. 
Granulated  Ferrous  Sulphate  is  no  longer  directed  to  be  granulated 
by  the  addition  of  alcohol  to  the  concentrated  aqueous  solution. 
Alcohol  is  only  directed  to  be  used  to  wash  the  product  granulated 
by  constant  stirring  while  the  saturated  solution  is  cooling. 
Ferric  Valerianate  is  admitted  to  be  of  varying  composition,  and 
the  chemical  formula  is  omitted. 
Glycerites  of  Carbolic  Acid  and  of  Tannic  Acid  are  two  old  friends 
of  1870,  restored  to  their  rightful  position.  In  the  latter,  the  direc- 
tions should  require  that  the  tannic  acid  and  glycerin  be  rubbed  in 
a  mortar  to  a  smooth  mixture,  and  then  transferred  to  a  capsule  and 
heated  on  a  water  bath  until  dissolved. 
In  Glycerite  of  Starch  10  per  cent,  of  water  is  introduced  in  place 
of  that  amount  of  glycerin.  Glycerite  of  boroglycerin  and  Glycerite 
of  Hydrastis  are  two  new  additions.  The  former  is  a  deserved 
recognition  of  a  frequently  used  and  good  remedy,  the  latter  we  are 
doubtful  about. 
The  official  Mercurous  Iodide  is  yellow,  and  this  is  indicated  in 
the  title  by  changing  "viride  "  to  flavnm,  and  it  is  now  directed  to 
be  made  by  precipitating  mercurous  nitrate  with  potassium  iodide. 
Manufacturers  have  for  years  listed  both  yellow  and  green  mercurous 
iodide,  the  color  being  dependent  on  the  amount  of  mercury  present. 
The  Mercuric  Iodide  is  made  as  heretofore  from  mercuric  chloride 
and  potassium  iodide,  but  the  solutions  of  the  salts  are  directed  to 
be  simultaneously  poured  into  a  quantity  of  distilled  water. 
That  the  formula  of  the  Pharmacopoeia  of  1880,  for  Mercury  with 
Chalk  was  very  unsatisfactory  is  admitted,  and  we  are  not  sorry  to 
see  it  abandoned.  In  the  Pharmacopoeia  of  1890,  clarified  honey 
is  used  to  disseminate  the  mercury.  It  is  to  be  observed,  that  the 
formula  prescribes  105  gm.  of  material  to  yield  100  gm.  finished 
product,  which  would  require  a  loss  of  5  gm.  (50  per  cent.)  of 
moisture  by  the  honey. 
We  are  somewhat  surprised  to  find  the  hydrochloride  of  the  arti- 
ficial alkaloid  hydrastinine  introduced,  and  not  the  alkaloid  hydras- 
tine  from  which  it  is  derived.  While  the  reports  of  the  haemostatic 
value  of  the  former  are  favorable,  we  were  not  aware  that  its  use  had 
extended  beyond  the  experimental  stage,  but  the  latter  has  been 
