British gum and 4 lbs. pipe
clay; adding afterward, 2 oz. nitrate of copper as a deliquescent.
M.A.H, of Vt.--"I have a surplus of water power and desire to know the
probable cost of the apparatus for producing the electric light, with
a view of employing my surplus power in that direction." A serviceable
magneto-electrical machine for giving light is quite expensive.
* * * * *
Business and Personal.
_The charge for insertion under this head is 50 cents a line_.
* * * * *
Parties in want of Fine Tools or Machinists' Supplies send for price
list to Goodnow & Wightman, 23 Cornhill, Boston, Mass.
Pattern Letters and Figures for inventors, etc., to put on patterns for
castings, are made by Knight Brothers, Seneca Falls, N.Y.
Allen & Needles, 41 South Water street, Philadelphia, Manufacturers of
Allen's Patent Anti-Lamina, for removing and preventing Scale in steam
boilers.
All Parties having any article to sell through an agent, address, with
circular, etc., Box 499 Oil City, Pa.
Manufacturers of Tag Holders will please send address to Box 1019, St.
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