﻿MINERALS 
  FOR 
  RESEARCH 
  

   LABORATORIES 
  

  

  We 
  are 
  constantly 
  being 
  called 
  upon 
  by 
  Research 
  Labora- 
  

   tories 
  for 
  minerals 
  desired 
  for 
  experimental 
  work. 
  

  

  It 
  has 
  come 
  to 
  be 
  recognized 
  that 
  Ward's 
  Establishment 
  is 
  

   the 
  most 
  likely 
  place 
  from 
  which 
  to 
  secure 
  such 
  material. 
  

  

  Price-List 
  187 
  enumerates 
  several 
  hundred 
  minerals 
  which 
  we 
  

   sell 
  by 
  weight 
  and 
  for 
  which 
  we 
  are 
  usually 
  able 
  to 
  fill 
  orders 
  

   promptly 
  from 
  stock. 
  

  

  This 
  list 
  is 
  by 
  no 
  means 
  complete, 
  however, 
  as 
  we 
  do 
  not 
  

   ordinarily 
  advertise 
  minerals 
  of 
  which 
  we 
  have 
  but 
  a 
  small 
  

   quantity, 
  or 
  for 
  which 
  the 
  demand 
  is 
  so 
  large 
  as 
  to 
  cause 
  incom- 
  

   ing 
  shipments 
  to 
  be 
  sold 
  as 
  soon 
  as 
  received. 
  

  

  Among 
  such 
  minerals 
  we 
  would 
  name 
  

  

  Optical 
  Fluorite, 
  Iceland 
  Spar, 
  Selenite, 
  Halite, 
  

   Tourmaline 
  ; 
  also 
  Rare 
  Earth 
  Minerals, 
  Iridosmine, 
  Wireless 
  

   materials, 
  Bortz, 
  and 
  many 
  kinds 
  of 
  rare 
  ores 
  and 
  minerals. 
  

  

  If 
  you 
  have 
  any 
  special 
  need, 
  permit 
  us 
  to 
  try 
  to 
  help 
  you. 
  

   We 
  can 
  supply 
  material 
  often 
  "when 
  all 
  others 
  fail." 
  

  

  Even 
  though 
  we 
  do 
  not 
  have 
  in 
  stock 
  what 
  you 
  want, 
  it 
  is 
  

   quite 
  likely 
  we 
  know 
  where 
  to 
  secure 
  it 
  quickly. 
  Put 
  us 
  to 
  

   the 
  test. 
  

  

  WARD'S 
  NATURAL 
  SCIENCE 
  ESTABLISHMENT 
  

  

  DEPARTMENT 
  OF 
  MINERALOGY 
  AND 
  PETROGRAPHY 
  

  

  GEORGE 
  LETCHWORTH 
  ENGLISH, 
  Manager 
  

  

  84-102 
  College 
  Avenue, 
  Rochester, 
  New 
  York 
  

  

  