ii8 
Glass  Manufacture 
{Am.  Jour,  Pharm. 
February,  1920. 
Edinburgh  the  same  seemed  to  be  the  case,  although  the  single 
flowers  of  Anthemis  nobilis  are  distinguished,  by  those  who  know 
where  to  get  them,  as  at  Aberdeen,  as  "Scotch"  chamomiles. 
This  confusion  may  be  due  to  the  fact  that  single  chamomiles 
do  not  figure  in  the  usual,  wholesale  drug  lists.  It  is,  however,  possi- 
ble that  those  who  order  single  chamomiles  may  really  wish  for 
English  double  chamomiles  in  preference  to  the  cheaper  French  and 
Belgian  double  chamomile  flowers,  since  the  English  have  always 
some  of  the  central  florets  still  remaining  tubular  and  yellow,  and 
these  are  said  to  afford  more  essential  oil  than  the  double  or  ligu- 
late  florets.  It  is  noticeable  that  in  "Pharmacographia"  (2nd  ed., 
p.  385)  it  is  stated  that  "such  flowers,  having  a  somwhat  yellow  cen- 
tre, are  called  by  druggists '5wg/e  Chamomiles.'''  It  would  be  in- 
teresting to  learn  from  different  parts  of  Great  Britain  what  the 
retail  trade  understand  by  the  name  "Single  Chamomiles,"  or  what 
they  wish  for  when  ordering  "single"  chamomiles  from  their  whole- 
sale houses. 
It  is  remarkable  that  the  German  chamomile  is  the  kind  now 
official  in  the  U.  S.  Pharmacopoeia  of  1906,  in  which  the  Roman 
chamomile,  Anthemis  nobilis,  is  conspicuous  by  its  absence.  Yet 
Maisch  states  that  "German  chamomile  has  less  agreeable  quali- 
ties than  the  English  chamomile,  but  medicinally  may  be  substi- 
tuted for  it."    ("National  Dispensatory,"  1886,  p.  966.) 
It  may  be  pointed  out  that  Matricaria  chamomilla  has  smaller 
flowers  and  a  hollow,  conical  receptacle,  and  no  paleae  or  scales 
below  the  florets,  while  Anthemis  nobilis  has  membranous  scales 
and  a  solid  conical  receptacle.    The  odor  of  the  two  is  also  distinct. 
GLASS  MANUFACTURE  AT  THE  END  OF  THE  WAR.i 
By  Morris  W.  TravErs. 
During  the  war  many  British  glass  factories  were  engaged  to  a 
very  considerable  extent  in  producing  goods  and  materials  which 
had  previously  been  partly  or  wholly  imported  from  enemy  coun- 
tries, but  which  were  equally  indispensable  in  war  or  peace.  Plant 
1  Communicated  by  Section  B  (Chemistry)  of  the  British  Association  for 
the  Advancement  of  Science.  Abridged.  Reprinted  from  The  Journal  of  the 
Society  of  Chemical  Industry,  Oct.  31,  19 19. 
