Gum ammoniac added to the solution of gum-arabic in proof spirits very much improves the cement. It answers very well for joining broken glass and ornamental articles of porcelain.
DIRECTORY.
In order to enable strangers and merchants from abroad, as well as those residing in New England, to readily find some of the leading houses in Boston representing the various branches in the Boot and Shoe and Leather Trade, also some of its collateral helps, in the way of Important Inventions, Agencies, &c., we have inserted Advertisements and Cards of a few among the many that we know to occupy highly respectable and reliable positions. Our space is necessarily limited, and we therefore present but a brief list, yet sufficiently large to represent every important interest, also some of the most valuable Labor-saving Machines and Inventions, which are of great practical utility to the manufacturer.
VULCANIZED RUBBER SOLES.
This Soling has been growing in favor with the public for the past few years; and recommending itself as it does, for its
ECONOMY, DURABILITY AND COMFORT,
and as a great preserver of health, being perfectly WATER PROOF, deserves general introduction to the people.
It is manufactured in sheets about thirty inches wide, and from one-sixteenth to three-sixteenths of an inch thick, suitable for the thinnest slipper or the heaviest boot.
Its application is perfectly simple. Cement for putting it on, being furnished by the same manufacturers.