342 
Rapid  Deterniination  of  Sulphuric  Acid.  \ 
mon  parsley.  On  heating  with  alcoholic  solutions  of  KOH  or  NaOH, 
it  is  saponified  with  liberation  of  santalol,  but  is  not  affected  by  weak 
mineral  or  organic  acids.  Its  boiling  point  is  between  250°  and  260° 
C.  at  60  M.M. 
I  do  not  pretend  to  have  obtained  an  absolutely  pure  santalol 
lactate,  but  the  commercial  process  described  is  practical  and  the 
product  all  that  is  required  for  medicinal  use  in  place  of  sandal- 
wood oil. 
Hotel  Brevoort,  May  5,  191 1. 
RAPID  DETERMINATION  OF  SULPHURIC  ACID  WITH 
Every  chemist  in  general  will  agree  that  up  to  the  present  our 
methods  of  gravimetric,  and  volumetric  analysis  are  apt  to  have 
some  phase  where  the  accuracy  is  in  doubt,  where  the  reaction  is  not 
fully,  or  in  some  cases  purely  hypothetical,  and  therefore  not  abso- 
lutely correct ;  we  therefore  go  through  journals  and  chemical 
literature  to  find  our  way  out  of  a  labyrinth  of  reactions  which  take 
place  by  a  simple  precipitation  of  two  bodies  chemically  acted  upon 
according  to  the  laws  which  govern  these  reactions,  visible  and  ob- 
THE  POROUS  CLAY  CRUCIBLE. 
By  Frederick  Klein,  Ph.D. 
,  POROUS 
h-CLAY  CRUCIBLE 
p-THE  PRECIPITATE 
I^LASS  BELL  JAR  SO 
CALLED  CARBON  FILTER 
m 
FIG  I 
SUCTION  PIPE 
POR  PUMP  WITH 
HEAVY  TUBING 
