m.  Jour.  Pharm.  \ 
February,  1902.  J 
Filtration  of  Drinking  Water. 
67 
albuminoids,  practical  attention  had  been  chiefly  directed  to  the 
pancreas  function  of  digesting  fat,  and  even  in  this  respect  the  pan- 
creatine being  defectively  prepared  (and  saccharated)  its  value  was 
practically  negative. 
Pancreatine  was  first  officially  recognized  in  the  U.S.P.  in  1890,. 
and  about  this  time  the  National  Formulary  recognized  it  with  a 
method  for  its  manufacture  and  adopted  the  U.S.P.  standard  as  to 
its  proteolytic  power,  especially  relating  to  its  practical  use  in  the 
peptonization  of  milk. 
"  Pancreatine,"  as  officially  recognized  by  the  U.S.P.,  is  defined 
as  a  mixture  of  the  enzymes  of  the  pancreas  gland,  digesting  albu- 
minoids and  converting  starch  into  sugar. 
Pavy,  in  1867,  suggested  the  first  preparation  of  an  artificially 
digested  food,  obtained  from  meat  and  preserved  in  a  fluid  form. 
Roberts,  in  his  Lumleian  Lectures  of  1880,  demonstrated  the 
adaptability  and  potency  of  the  pancreas  ferments  for  the  peptoniza- 
tion of  foods  for  the  sick,  especially  the  susceptibility  of  milk  as 
well  as  farinaceous  foods  to  artificial  pancreatic  digestion.  He 
adduced  numerous  experiments  as  to  the  behavior  of  these  ferments 
of  practical  significance,  and  suggested  methods  for  preparing  phar- 
maceutical preparations  of  them,  discussing  and  illuminating  the 
whole  subject  in  this  series  of  brilliant  and  practical  lectures.  It 
was  he,  it  appears,  who  brought  into  use  the  word  "  peptonized  "  as 
a  convenient  term  for  the  description  of  artificially  digested  foods. 
The  pancreatic  ferments  had  been  previously  utilized  in  a  very 
primitive  and  extemporaneous  manner ;  for  instance,  treating  meat 
by  direct  incorporation  with  the  fresh  gland,  especially  for  nutritive 
enemata ;  "  paricreatized  "  fats,  in  a  similar  manner,  and  pancreatic 
emulsions  were  also  introduced  into  pharmacy,  resulting  from  the 
treatment  of  fat  by  direct  maceration  with  the  fresh  gland  pulp. 
[To  be  continued.) 
FILTRATION  OF  DRINKING  WATER. 
By  WiivUAM  G.  Topus. 
The  need  of  water  purification  begins  immediately  after  its 
delivery  by  the  mighty  distillery  of  Nature. 
Its  contamination  is  commonly  incident  with  its  delivery,  while 
its  purification  often  follows  closely  by  the  operation  of  naturaL 
