supply."--_Glasgow Herald._

* * * * *

=COLOUR MATCHING ON TEXTILES.= A Manual intended for the use of Students
of Colour Chemistry, Dyeing and Textile Printing. By DAVID PATERSON,
F.C.S. Coloured Frontispiece. Twenty-nine Illustrations and Fourteen
Specimens of Dyed Fabrics Illustrating Text. Demy 8vo. 132 pp. 1901.
Price 7s. 6d.; India and Colonies, 8s.; Other Countries, 8s. 6d.;
strictly net.

=Contents.=

Chapters I., Colour Vision and Structure of the Eye--Perception of
Colour--Primary and Complementary Colour Sensations.--II., Daylight for
Colour Matching--Selection of a Good Pure Light--Diffused Daylight,
Direct Sunlight, Blue Skylight, Variability of Daylight, etc.,
etc.--III., Matching of Hues--Purity and Luminosity of Colours--Matching
Bright Hues --Aid of Tinted Films--Matching Difficulties Arising from
Contrast.--IV., Examination of Colours by Reflected and Transmitted
Lights--Effect of Lustre and Transparency of Fibres in Colour
Matching.--V., Matching of Colours on Velvet Pile--Optical Properties of
Dye-stuffs, Dichroism. Fluorescence.--VI., Use of Tinted Mediums--Orange
Film--Defects of the Eye--Yellowing of the Lens--Colour Blindness,
etc.--VII., Matching of Dyed Silk Trimmings and Linings and
Bindings--Its Difficulties--Behaviour of Shades in Artificial
Light--Colour Matching of Old Fabrics, etc.--VIII., Examination of Dyed
Colours under the Artificial Lights --Electric Arc, Magnesium and
Dufton, Gardner Lights, Welsbach, Acetylene, etc.--Testing Qualities of
an Illuminant.--IX., Influence of the Absorption Spectrum in Changes of
Hue under the Artificial Lights--Study of the Causes of Abnormal
Modifications of Hue, etc.

* * * * *

=Reissue of THE ART OF DYEING WOOL, SILK AND COTTON.=

Translated from the French of M. HELLOT, M. MACQUER and M. LE PILEUR
D'APLIGNY. First Published in English in 1789. Six Plates. Demy 8vo. 446
pp. 1901. Price 5s.; India and Colonies, 5s. 6d.; Other Countries, 6s.;
strictly net.

=Contents.=

Part I., =The Art of Dyeing Wool and Woollen Cloth, Stuffs, Yarn,
Worsted, etc.:= Introduction.--Chapters I., Of the Vessels and
Utensils used in Dyeing.--II., Of the Fixed and Fugitive, commonly
called Great and Little Dye.--III., Of Colours in Grain. =Dyeing Wool:=
IV., Of Blue.--V., Of the Pastel Vat--Directions for the Proper
Management of the Vat--Indications when the Vat has Suffered by too much
or too l