590  INDEX. 
Vacuum  apparatus,  automatic   129 
Valerianate  of  ammonia,  elixir  of   150 
Valerianate  of  iron   532 
Valerianate  of  zinc     537 
Vanilla,  its  culture  in  Mexico  «    38 
Vanillin   376 
Varieties  86,  180,  375,  472,  561 
Veratrum  sabadilla     499 
Veratrum  viride   97 
Veratrum  frigidum     500 
Veratria,  reactions  of  .,   551 
Vermifuge  properties  of  pumpkin  seed     253 
Verrill,  A.       on  a  new  fluid  for  preserving  specimens  of  natural  history..  232 
Virtues  of  borax  as  a  detergent   565 
Wadgymar  Dr.  A.,  on  testing  alkaloids   447 
Walker,  John  T.,  on  fluid  extract  of  cinchona   411 
Warren,  T.  P.  B.,  on  the  effects  of  soil  and  culture  on  the  active  princi- 
ples of  plants  «   45 
Water^  camphor   166 
Wax,  yellow,  in  cerates   337 
Weil,  M.  Frederick,  on  a  new  process  for  plating  metals  *  173 
Welwitsch,  Dr.,  observations  on  the  origin  and  distribution  of  copal  in 
Angola  ,   439 
Whiskey,  pharmacopoeia  strength  of   324 
White  copal  (heliocarpus  copallifera)  ,   503 
Whitney,  Prof.  J.  D.,  on  borax  in  California   235 
Wildman,  Dr.  E  ,  on  dentist's  hard  rubber  ..   185 
Wine,  essence  of     168 
Why  do  bees  work  in  the  dark   239 
Wholesale  lead  poisoning     366 
Wood  naphtha,  Eschwege's  patent  ,   70 
Wood,  spirits  of  turpentine,  wood  spirit,  &c,  obtained  from  pine   530 
Young,  W.,  on  the  detection  of  methylic  alcohol  in  alcoholic  and  ethereal 
liquids     58 
Yellow  wax,  instead  of  white  in  cerates   337 
Zinc,  valerianate  of     537 
