Examination of the Drying Oils and Boiled Oil.

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REISSUE OF =CHEMICAL ESSAYS OF C.W. SCHEELE.= First Published in English
in 1786. Translated from the Academy of Sciences at Stockholm, with
Additions. 300 pp. Demy 8vo. 1901. Price 5s.; India and Colonies, 5s.
6d.; Other Countries, 6s.; strictly net.

=Contents.=

Memoir; C.W. Scheele and his work (written for this edition).--Chapters
I., On Fluor Mineral and its Acid.--II., On Fluor Mineral.--III.,
Chemical Investigation of Fluor Acid, with a View to the Earth which it
Yields, by Mr. Wiegler.--IV., Additional Information Concerning Fluor
Minerals.--V., On Manganese, Magnesium, or Magnesia Vitrariorum.--VI.,
On Arsenic and its Acid.--VII., Remarks upon Salts of Benzoin--VIII., On
Silex, Clay and Alum.--IX., Analysis of the Calculus Vesical.--X.,
Method of Preparing Mercurius.

Dulcis Via Humida.--XI., Cheaper and more Convenient Method of Preparing
Pulvis Algarothi.--XII., Experiments upon Molybdaena.--XIII.,
Experiments on Plumbago.--XIV., Method of Preparing a New Green
Colour.--XV., Of the Decomposition of Neutral Salts by Unslaked Lime and
Iron.--XVI., On the. Quantity of Pure Air which is Daily Present in our
Atmosphere.--XVII., On Milk and its Acid.--XVIII., On the Acid of
Saccharum Lactis. --XIX., On the Constituent Parts of Lapis Ponderosus
or Tungsten.--XX., Experiments and Observations on Ether.

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=GLUE AND GLUE TESTING.= By SAMUEL RIDEAL, D.SC. Lond., F.I.C. Fourteen
Engravings. 144 pp. Demy 8vo. 1900. Price 10s. 6d.; India and Colonies,
11s.; Other Countries, 12s.; strictly net.

=Contents.=

Chapters I., =Constitution and Properties: Definitions and Sources,
Gelatine, Chondrin and Allied Bodies, Physical and Chemical Properties,
Classification, Grades and Commercial Varieties.--II., =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. --III., =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.--IV., =Gelatine=: General Characters, Liquid Gelatine,
Photographic Uses, Size, Tanno-, Chrome