332  Minutes  of  the  Pharmaceutical  Meeting.  {^"^f^Z'ilsS!"'' 
an  atom  of  nitrogen,  we  see  the  possibility  of  two  such  substances  corre- 
sponding with  tlie  a  and  0  monosubstitution  products  of  naplithalene. 
Because  of  its  formation  from  dichlorquinoline  Baeyer  regards  quinoline 
and  its  homologues  as  belonging  to  the  a  series ;  leucoline  and  its  honio- 
logues  would  hence  belong  to  the  p  series.  But  it  is  still  an  open  question 
whether  leucoline  is  really  isomeric  with  quinoline.  Hofmann  regarded 
them  as  identical,  but  C.  G.  Williams  pointed  out  that  quinoline  with 
fimyl  iodide  yields  the  blue  coloring  matter  cyanine,  while  leucoline  has 
not  this  property.  Hoogewerf  and  Van  Dorp^  have  confirmad  the  state- 
ment of  Williams;  but,  on  the  other  hand,  quinoline  and  leucoline  when 
oxidized  with  potassium  permanganate  give  the  same  pyridine-dicarbonic 
^cid.    Amer.  Chem.  Jour.  v.  p.  60.  E.  H.  K. 
MINUTES  OF  THE  PHAEMACEUTICAL  MEETING. 
In  the  absence  of  the  President  Mr.  Alonzo  Bobbins  was  called  to  the 
<jhair.    The  minutes  of  the  last  meeting  were  read  and  approved. 
Prof.  Maisch  remarked,  in  relation  to  the  minutes  of  the  last  meeting, 
that  a  correspondent  had  called  his  attention  to  the  fact  that  the  drug 
abutua  is  stated  by  the  Portuguese  Pharmacopa»ia  to  be  pareira  brava;  he 
also  showed  a  list  of  the  common  and  botanical  names  of  a  number  of 
useful  Brazillian  plants,  published  by  Dr.  T.  Peckolt,  in  a  recent  number 
of  the  Austrian  Pharmaceutical  Journal,  and  in  which  abutua  is  stated  to 
be  Botryopsis  platyphylla,  Mleiij  nat.  ord.  menispermacese. 
Prof.  Maisch  presented  to  the  Libi-ary  two  volumes  of  "  Hubbard's  News- 
paper and  Bank  Directory  of  the  World,"  and  stated  that  for  some  months 
he  had  examined  the  statements  about  a  number  of  small  places  in  Europe, 
about  which  he  was  familiar,  and  was  agreeably  surprised  to  find  them 
accurate. 
A  few  questions  relative  to  the  lactometers  which  were  alluded  to  were 
asked,  and  Prof.  Maisch  described  one  in  which  the  opacity  of  the  milk 
was  determined  by  the  depth  to  which  the  scale  could  be  immersed  in  the 
fluid  and  still  be  legible,  the  greater  the  depth  to  which  it  could  be  immersed 
the  poorer  the  milk.  Mr.  Heiuitsh  alluded  to  an  instrument  imported  by 
Sharp  &  Dohme,  of  Baltimore,  which  was  much  praised,  but  seems  never 
to  have  been  introduced  very  extensively  into  use;  the  quality  of  milk  is 
ascertained  from  the  color  of  a  few  drops  of  it. 
Mr.  Gustavus  Pile  read  a  paper  on  the  Alcohol  tables  of  the  new  Pharma- 
cojDceia  (see  page  303),  which  differ  from  those  recognized  by  law  in  the 
United  States,  notably  in  the  strength  of  proof  spirit,  for  which  the  Phar- 
macopoeia gives  that  recognized  in  Great  Britain.  He  likewise  directed 
attention  to  the  error  in  the  statement  of  the  volumetric  percentage  of  alco- 
hol ;  for  instance  alcohol  of  94  per  cent,  by  volunie  does  not  contain  6,  but 
7.£9  per  cent,  by  volume  of  water,  the  excess  over  100  volumes  being  due  to 
<ion(lensation. 
Prof.  Maisch  said  that  finding  the  U.  S.  Pharmacopoeia  authority  for  the 
^Anualen  der  Chemie,  civ,  117. 
