ions -- Antiseptic Washes and Soaps --
Toilet and Hygienic Soaps -- Secret Preparations for Skin, Complexion,
Teeth, Mouth, etc. -- Testing and Examining the Materials Employed in
the Manufacture of Cosmetics -- Index.

GLUE, BONE PRODUCTS AND MANURES.

#GLUE AND GLUE TESTING.# By Samuel RIDEAL, D.Sc. (Lond.), F.I.C.
Fourteen Engravings. 144 pp. Demy 8vo. Price 10s. 6d. net. (Post free,
10s. 10d. home; 11s. abroad.)

#Contents.#

#Constitution and Properties:# Definitions and Sources, Gelatine,
Chondrin and Allied Bodies, Physical and Chemical Properties,
Classification, Grades and Commercial Varieties -- #Raw Materials and
Manufacture:# Glue Stock, Lining, Extraction, Washing and Clarifying,
Filter Presses, Water Supply, Use of Alkalies, Action of Bacteria and
of Antiseptics, Various Processes, Cleansing, Forming, Drying,
Crushing, etc., Secondary Products -- #Uses of Glue:# Selection and
Preparation for Use, Carpentry, Veneering, Paper-Making, Bookbinding,
Printing Rollers, Hectographs, Match Manufacture, Sandpaper, etc.,
Substitutes for other Materials, Artificial Leather and Caoutchouc --
#Gelatine:# General Characters, Liquid Gelatine, Photographic Uses,
Size, Tanno-, Chrome and Formo-Gelatine, Artificial Silk, Cements,
Pneumatic Tyres, Culinary, Meat Extracts, Isinglass, Medicinal and
other Uses, Bacteriology -- #Glue Testing:# Review of Processes,
Chemical Examination, Adulteration, Physical Tests, Valuation of Raw
Materials -- #Commercial Aspects#.

#BONE PRODUCTS AND MANURES:# An Account of the most recent Improvements
in the Manufacture of Fat, Glue, Animal Charcoal, Size, Gelatine and
Manures. By Thomas LAMBERT, Technical and Consulting Chemist.
Illustrated by Twenty-one Plans and Diagrams. 162 pp. Demy 8vo. Price
7s. 6d. net. (Post free, 7s. 10d. home; 8s. abroad.)

#Contents.#

Chemical Composition of Bones -- Arrangement of Factory -- Properties
of Glue -- Glutin and Chondrin -- Skin Glue -- Liming of Skins --
Washing -- Boiling of Skins -- Clarification of Glue Liquors --
Glue-Boiling and Clarifying-House -- Specification of a Glue -- Size
-- Uses and Preparation and Composition of Size -- Concentrated Size
-- Properties of Gelatine -- Preparation of Skin Gelatine -- Drying --
Bone Gelatine -- Selecting Bones -- Crushing -- Dissolving --
Bleaching -- Boiling -- Properties of Glutin and Chondrin -- Testing
of Glues and Gelatines -- The Uses of Glue, Gelatine and Size in
Various Trades --