442  Twenty-third  Annual  Meeting  of  the  { 
work,  the  Hance  Mill,  and  for  small  quantities,  to  be  ground  fine,  the 
Troemner  Mill ;  the  old  Swift  Mill,  also,  answering  an  admirable  pur- 
pose. 
Dr.  A.  W.  Miller  read  a  paper  on  "  Mezquite-gum,'*  and  exhibited 
specimens  of  the  gum  and  of  the  leaves  and  fruit  of  Algarohia  glandulosa. 
The  gum,  which  is  collected  in  the  latter  part  of  summer  in  Mexico 
and  Texas,  has  been  used  in  the  Atlantic  cities  to  some  extent,  in  con- 
fectionery ;  but,  owing  to  the  cost  of  transportation,  it  can  scarcely 
compete  with  the  lower  grades  of  gum  arabic. 
A  resolution  was  offered  and  passed,  authorizing  the  Executive  Com- 
mittee to  prepare  a  metallic  badge  of  membership. 
Professor  Diehl  read  the  introductory  chapter  of  his  voluminous  "  Re- 
port on  the  Progress  of  Pharmacy  "  during  the  year  ending  June  30th, 
which  was  referred  for  publication. 
An  essay  by  G.  W.  Sloan,  of  Indianapolis,  on  "  Phosphoretted 
resin,"  was  read  by  Mr.  Saunders.  The  author  found  that  glycerin  is 
an  excellent  vehicle  for  its  administration,  while  gum  arabic  does  not 
answer.  Resin,  containing  10  per  cent,  of  phosphorus,  may  be  incor- 
porated with  sugar  of  milk,  and  administered  with  perfect  safety  in  the 
form  of  pills  and  mixtures. 
A  communication  from  Mr.  W.  H.  Walling,  which  was  now  read, 
recommends,  for  phosphorus  pills,  to  use  6  grains  of  phosphorus,  200 
grains  of  cacao-butter  and  100  grains  of  powdered  soap,  and  proceed  in 
the  manner  directed  on  pages  335  and  253  of  this  Journal  ;  a  sample 
of  pills  accompanied  this  paper. 
Mr.  BallufF,  on  behalf  of  the  Committee  appointed  at  the  first  ses- 
sion, reported  favorably  on  the  propositions  to  alter  some  articles  of  the 
by-laws,  as  recommended  in  the  President's  address.  The  considera- 
tion of  the  report  was  deferred.  The  same  Committee  likewise  pre- 
sented a  report  on  the  recommendations  contained  in  the  Secretary's 
report  in  regard  to  the  next  annual  meeting,  which  were  adopted. 
Papers  on  diluted  phosphoric  acid,  by  L.  Dohme,  of  Baltimore,  J. 
P.  Remington,  of  Philadelphia,  and  G.  F.  H.  Markoe,  of  Boston, 
were  read.  The  first  two  papers  treat  of  the  conversion  of  glacial 
into  tribasic  phosphoric  acid,  which  was  stated  to  be  rendered  difficult 
by  the  large  quantity  of  soda  often  present  in  the  glacial  acid  at  present 
found  in  commerce  ;  the  preparation  of  the  diluted  acid  from  phospho- 
rus was  for  this  reason  recommended.  Prof.  Markoe's  paper  recom- 
mends the  preparation  of  phosphoric  acid  from  phosphorus,  by  adding 
