Varieties. 
f  Am.  Jour  Pharm- 
\     Nov.  1,1874. 
tallow  and  rosin  laundry-soaps,  containing  respectively  twenty-two  and  a  half 
.and  twenty-five  per  cent,  of  silicate  of  soda. 
Rihn  &  Co.  and  L.  Martin  &  Co.  display  varieties  of  lampblack. 
The  products  of  the  Gap  Nickel  Mine,  of  Lancaster  County,  are  exhibited 
by  the  American  Nickel  Works.  We  observed  some  very  beautiful  specimens 
of  nickel  and  cobalt  plating,  together  with  nickel  ore  and  pure  cobalt  and 
pure  nickel,  and  a  number  of  rare  and  handsome  salts  of  both  these  metals. 
Hance  Bros.  &  White  have  made  a  tasteful  and  elaborate  display  of  their 
-varied  manufactures.  Among  these  multitudinous  productions  we  noticed 
nitrite  of  amyl,  and  an  imitation  of  the  famous  cordial  of  the  monks,  Elixir 
Chartreuse. 
Sugar-coated  pills,  in  the  well-known  vast  variety,  are  exhibited  by  Bullock 
Crenshaw  and  Wm.  R.  Warner  &  Co. ;  compressed  pills,  by  John  Wyeth  & 
Bro.;  gelatine-coated  pills,  by  McKesson  &  Robbins. 
Keasbey,  Mattison  &  Rutter  exhibit  an  assortment  of  their  granular  effer- 
vescent salts,  together  with  saccharated  pepsin  and  pancreatin. 
Mellor  &  Rittenhouse  offer  American  licorice,  in  rolls  of  various  sizes  and 
;in  mass.  The  latter,  in  particular,  seems  to  meet  with  general  approbation,  if 
we  mayjudge  from  the  rapidity  with  which  it  evaporates.  Also,  bay  ram,  court- 
blaster,  medical  and  cachou  lozenges. 
John  M.  Sharpless  &  Co.  exhibit  fine  specimens  of  various  dye-woods,  such 
as  hypernic,  Campeachy,  camwood,  barwood  and  fustic  ;  also,  red  and  yellow 
prussiate  of  potash,  bluestone  and  extract  of  logwood. 
Harrison  Bros.  &  Co.  have  made  a  very  extensive  and  praiseworthy  display 
of  their  paints  and  chemicals.  Their  large  jars  of  brilliant  pigments  are  more 
particularly  attractive  on  account  of  being  carefully  graded  from  light  to  darker 
shades,  so  as  to  present  a  regular  chromatic  scale.  As  far  as  possible,  each 
color  has  a  separate  shelf  assigned  to  it,  thus  producing  a  harmonious  impres- 
sion. We  are  under  obligations  to  the  accomplished  and  gentlemanly  repre- 
sentative of  the  house,  who  kindly  explained  to  us  the  composition  of  many  of 
their  paints.  The  numerous  substitutes  for  Paris  green,  sold  under  an  infinite 
variety  of  names,  and  by  many  houses  claimed  to  be  entirely  free  from  poison, 
were  staled  to  be  mixtures  of  chrome  yellow  with  Prussian  blue  or  ultrama- 
rine, in  varying  proportions.  The  extra  light  shade  of  chrome  yellow  known  as 
canary,  is  obtained  by  an  admixture  of  sulphate  of  lead.  Colors  for  paper- 
staining  and  others  for  lithographic  purposes  are  also  shown  in  great  variety. 
A  large  bottle  of  wood  alcohol  is  on  exhibition,  this  being  here  chiefly  con- 
sumed in  the  manufacture  of  shellac  varnish.  Alum  and  pyrolignate  or  brown 
sugar  of  lead,  used  largely  by  morocco  dressers,  were  effectively  displayed. 
We  were  particularly  pleased  with  the  exhibition  of  specimens  illustrating  the 
^manufacture  of  white  lead  in  its  various  stages.  The  pure  metal  is  shown  after 
being  cast  by  machinery  into  the  shape  of  perforated  discs,  technically  called 
buckles,  and,  also,  after  it  has  been  corroded  by  dilute  acetic  acid.  This  firm 
packs  the  corroding  pots  in  tan,  having  found  that  material  to  be  preferable  to 
-manure. 
Paints  are  likewise  exhibited  by  John  Lucas  &  Co.  and  Wetherill  &  Bro. 
Our  cosmolin  friends  have  been  lavish  in  their  disbursements  for  huge  glass 
