rman of the Fifth Edition.
Price 5s. net. (Post free, 5s. 3d. home; 5s. 6d. abroad.)

#Contents.#

Varieties of Ink -- Writing Inks -- Raw Materials of Tannin Inks --
The Chemical Constitution of the Tannin Inks -- Recipes for Tannin
Inks -- Logwood Tannin Inks -- Ferric Inks -- Alizarine Inks--Extract
Inks -- Logwood Inks -- Copying Inks -- Hektographs -- Hektograph Inks
-- Safety Inks -- Ink Extracts and Powders -- Preserving Inks --
Changes in Ink and the Restoration of Faded Writing -- Coloured Inks
-- Red Inks -- Blue Inks -- Violet Inks -- Yellow Inks -- Green Inks
-- Metallic Inks -- Indian Ink -- Lithographic Inks and Pencils -- Ink
Pencils -- Marking Inks -- Ink Specialities -- Sympathetic Inks --
Stamping Inks -- Laundry or Washing Blue -- Index.

#SEALING-WAXES, WAFERS AND OTHER ADHESIVES FOR THE HOUSEHOLD, OFFICE,
WORKSHOP AND FACTORY.# By H. C. STANDAGE. Crown 8vo. 96 pp. Price 5s.
net. (Post free, 5s. 3d. home; 5s. 6d. abroad.)

#Contents.#

#Materials Used for Making Sealing=Waxes# -- The Manufacture of
Sealing-Waxes -- Wafers -- Notes on the Nature of the Materials Used
in Making Adhesive Compounds -- Cements for Use in the Household --
Office Gums, Pastes and Mucilages -- Adhesive Compounds for Factory
and Workshop Use.

#LEAD ORES AND COMPOUNDS.#

#LEAD AND ITS COMPOUNDS.# By Thos. LAMBERT, Technical and Consulting
Chemist. Demy 8vo. 226 pp. Forty Illustrations. Price 7s. 6d. net.
(Post free, 7s. 10d. home; 8s. 3d. abroad.)

#Contents.#

History -- Ores of Lead -- Geographical Distribution of the Lead
Industry -- Chemical and Physical Properties of Lead -- Alloys of Lead
-- Compounds of Lead -- Dressing of Lead Ores -- Smelting of Lead Ores
-- Smelting in the Scotch or American Ore-hearth -- Smelting in the
Shaft or Blast Furnace -- Condensation of Lead Fume -- Desilverisation,
or the Separation of Silver from Argentiferous Lead -- Cupellation -- The
Manufacture of Lead Pipes and Sheets -- Protoxide of Lead -- Litharge and
Massicot -- Red Lead or Minium -- Lead Poisoning -- Lead Substitutes --
Zinc and its Compounds -- Pumice Stone -- Drying Oils and Siccatives -- Oil
of Turpentine Resin -- Classification of Mineral Pigments -- Analysis of
Raw and Finished Products -- Tables -- Index.

#NOTES ON LEAD ORES:# Their Distribution and Properties. By Jas. FAIRIE,
F.G.S. Crown 8vo. 64 pages. Price 2s. 6d. net. (Post free, 2s. 9d.
home; 3s. abroad.)

#INDUSTRIAL HYGIENE.#

#THE