GRAVITY  OF  WATER  AT  DIFFERENT  TEMPERATURES.  145 
ANALYSIS  OF  TOKAY  WINE. 
By  Dr.  Ziurek. 
The  quantitative  analysis  gave  the  following  results 
One  hundred  grammes  of  a  pure  sample  of  this  wine  contain, 
Absolute  alcohol,  ...  9.108  grms. 
(Enanthic  ether  (imponderable,) 
Grape  sugar,     -  11.031 
(Enanthin  (gum,)        -        -        -  4.137 
Fatty  matter,    -  0.007 
Albuminous  matter,    -  0.113 
Tannin,   0.311 
Extractive,       ...       -  1.378 
Acetic  acid,       -  0.032 
Tartaric  and  uvic  acids,        -        -  0.211 
Bitartrate  of  potassa,          -        -  0.238 
Tartrate  of  lime,        -        -        -  0.113 
Phosphate  of  magnesia  and  lime,  -  0.265 
Sesquioxide  of  iron,    -  0.113 
Alumina  and  silica,    -  traces. 
Water,   72.900 
99.957 
ArcMv.  d.  Pharm.,  1859,  Novb.  155,  156.  j.  m.  m. 
ON  THE  SPECIFIC  GRAVITY  OF  WATER  AT  DIFFERENT 
TEMPERATURES. 
By  W.  H.  Pile,  Philadelphia. 
As  a  small  contribution  to  science,  I  present  to  the  Associa- 
tion the  following  tables  on  the  specific  gravity  of  water  at  dif- 
ferent temperatures,  collected  from  various  sources,  and  com- 
prising my  own  observations  on  the  same  subject. 
By  way  of  introduction,  I  may  state  that  it  has  been  a  matter 
of  necessity  with  me  to  have  a  table  of  this  kind,  in  order  to 
graduate  my  specific  gravity  bottles  at  any  temperature,  without 
the  trouble  and  uncertainty  of  reducing  the  water  to  60°  F.  ar- 
tificially, which,  in  very  warm  weather,  would  vitiate  the  results, 
by  the  deposit  of  moisture  on  the  outside  of  the  glass  bottle,  as 
10 
