Am.  Jour.  Pharm. 
June,  1904. 
Some  Recent  Literature. 
295 
by  disturbances  in  the  ethereal  medium  which  produce  the  rays  of 
light.^-From  an  abstract  in  Chem.  Centralblatt  (1904,  i,  137),  through 
Am.  Jour.  Set.,  March,  1904,  page  243. 
A  NEW  METRIC  MEDICINE  GLASS. 
After  considerable  discussion  as  to  the  feasibility  of  making  a 
moulded,  conical  glass  that  would  be  sufficiently  inexpensive  to  be 
used  as  a  medicine  glass,  and  after  submitting  several  models  and 
offering  a  number  of  suggestions,  M.  I.  Wilbert  (Amer.  Med.f  May 
7,  1904,  p.  735)  was  finally  successful  in  inducing  one  of  the  large 
manufacturers  of  hollow  ware  to  undertake  and  make  for  him  a 
moulded  glass  that  would  conform  to  his  ideas  and  requirements. 
The  resulting  medicine  measure,  a  picture  of  which  is  appended, 
is  of  inverted  cone-shape,  with  a  heavy  base  or  foot.  It  is  75  mm. 
high,  over  all,  and  has  an  inner  diameter  of  50  mm.  at  the  lip,  while 
at  the  base  the  inner  diameter  is  but  10  mm.  At  the  i-teaspoonful 
mark,  which  is  25  mm.  above  the  bottom,  the  inner  diameter  of  the 
glass  is  about  20  mm.,  while  at  the  2-teaspoonful  mark,  35  mm. 
above  the  bottom,  the  diameter  is  but  little  more  than  27  mm. 
Specimens  of  this  medicine  glass  shown  at  the  meeting  of  the 
American  Pharmaceutical  Association  at  Mackinac  Island  (August, 
1903)  were  favorably  commented  on  by  a  number  of  the  members. 
As  will  be  noted,  this  glass  conforms  to  one  of  the  most  reasonable 
requirements  for  measures  of  capacity,  and  one  that  should  be  insisted 
on  for  all  measures  intended  for  liquids,  namely, 
that  the  height  of  the  contained  liquid  at  any 
given  graduation,  should  be  greater  than  its 
diameter. 
The  evident  advantages  possessed  by  a  gradu- 
ated conical  glass,  to  measure  differing  quantities 
of  liquid,  are  so  apparent  that  it  is  surprising 
indeed  that  this  particular  shape  has  not  been 
suggested  or  used  before  as  a  popular  dose 
measure. 
In  actual  practice  these  glasses  have  proved 
to  be  even  more  satisfactory  than  was  at  first 
expected.  In  addition  to  being  infinitely  more  accurate  as  dose 
measures,  particularly  for  the  I-  and  2-teaspoonful  quantities,  they 
also  facilitate  the  administration  of  doses  of  liquid  medicines.  This 
METRIC  MEDICINE 
GLASS. 
