592 
INDEX. 
Varnish,  preparation  of  Dammara           .....  317 
Varnish,  preparation  of  copal       .          .          .          .          .          .  342 
Vegetable  bronze  colors  from  Brazil  wood          ....  420 
Vegetable  musk    .*  .  .  .  .  .  .120 
Vegetable  alkaloids,  preparation  of,  with  benzole           .          .          .  33? 
Venom  of  serpents           .           .           .           .           .           .  24  L 
Veratria     .........  5 
Vogel,  A.,  on  a  method  of  detecting  sulphuret  of  carbon           .          .  64 
Wax,  rapid  method  of  bleaching  ......  523 
Warren,  James,  1VJ,  _D.,  on  styptic  balsam  .  .  .  .  240 
Weddell,  II.  A.,  Dr.,  on  the  cinchona  trade       ....  539 
Whipple,  George,  on  the  purification  of  the  oil  of  bitter  almonds  .  34S 
Whitney,  J.  D.,  on  the  metallic  wealth  of  the  United  States     .  .  508 
Weighing  machine  for  tareing  vessels     .  .  .  .  .15 
Were  the  ancient  Egyptians  acquainted  with  nitric  acid  ?         .  .  62 
Wide,  W.,  on  the  physiology  of  the  spiraceae     ....  60 
"        on  the  use  of  sulphate  of  copper  as  an  antiseptic     .  .  275 
Wiegand,  T.  S.,  on  syrup  of  sanguinaria  .  .  .  .  108 
£<  on  syrupus  ferri  phosphatis  compositus  .  .111 
<£  on  syrupus  calcis  phosphatis     ....  296 
"  on  syrupus  manganesiae  phosphatis       .  .  .  297 
Wiehr,  M.,  on  the  recognition  of  blood  spots  on  linen  and  cotton  cloth  .  527 
Wild  nutmeg,  figure  of  ......  501 
Wilson,  John  Stainbacl-,  M.D.,  on  Magnolia  tripetala  .  .  .  535 
Williams,  John,  on  the  use  of  benzole  in  the  process  for  vegetable  alka- 
loids .........  337 
Wine,  production  of,  in  Ohio       .  .  .  .  .  .411 
Wohler,  Prof.)  on  preparation  of  calomel  .  .  .  .  419 
Worthington,  Dr.  W.  H.}  on  syrup  of  elderberries         .  .  .  224 
Wormseed  oil        ......  404,  503 
Wyeth,  John,  on  Gillenia  trifoliata  .  .  .  .490 
