no manufacturer or user of lake
pigments can well afford to be without this work."--_Chemical Trade
Journal._

"This is undoubtedly a book which will occupy a very high place
amongst technical works, and will prove of exceptional value to all
whom it immediately concerns. We have no hesitation in recommending
it as one of the best works of its class we have ever read. Mr.
Jennison has set about his task with a lucid style, and with a
complete mastery of his subject. .. We do not think students of the
technical side of the paint and colour industry can possibly spend
7s. 6d. in a more profitable way than by buying this
publication."--_Eastern_ _Morning News._

* * * * *

=THE TESTING AND VALUATION OF RAW MATERIALS USED IN PAINT AND COLOUR
MANUFACTURE.= By M.W. JONES, F.C.S. A Book for the Laboratories of
Colour Works. 88 pp. Crown 8vo. 1900. Price 5s.; India and Colonies, 5s.
6d.; Other Countries, 6s.; strictly net.

=Contents.=

Aluminium Compounds. China Clay. Iron Compounds. Potassium Compounds.
Sodium Compounds. Ammonium Hydrate. Acids. Chromium Compounds. Tin
Compounds. Copper Compounds. Lead Compounds. Zinc Compounds. Manganese
Compounds. Arsenic Compounds. Antimony Compounds. Calcium Compounds.
Barium Compounds. Cadmium Compounds. Mercury Compounds. Ultramarine.
Cobalt and Carbon Compounds. Oils Index.

=Press Opinions.=

"Though this excellent little work can appeal only to a limited
class, the chemists in colour works, yet it will appeal to them very
strongly indeed, for it will put them on the track of short, rapid,
and yet approximately, accurate methods of testing the comparative
value of competing samples of raw material used in paint and colour
manufacture."--_North British_ _Daily Mail._

"This little text-book is intended to supplement the larger and more
comprehensive works on the subject, and it embodies the result of
Mr. Jones' experiments and experiences, extending over a long
period. It gives, under separate headings, the principal ingredients
and impurities found in the raw materials, and is a handy work of
reference for ascertaining what is valuable or detrimental in the
sample under examination."--_Blackburn Times._

"There is no attempt at literary adornment nor straining after
literary effect, but the lessons are imparted in simple and concise
lan