“All phases of the labor problem are ably and concisely treated.”

+ Am Machinist Jl 8 ’20 120w Booklist 17:10 O ’20 Springf’d Republican p10 Ap 24 ’20 200w

“This series has become indispensable for those who, unable to maintain a large filing system of their own, wish to keep important articles on industrial topics that appear in the periodicals.” B. L.

+ Survey 44:638 Ag 16 ’20 140w

BLOUNT, BERTRAM; WOODCOCK, WILLIAM H.; and GILLETT, HENRY J. Cement. il *$6 (*18s) Longmans 691.5

20–13877

“The present volume forms one of the series of Monographs on industrial chemistry which is being edited by Sir Edward Thorpe, F.R.S., and published by Messrs Longmans. The book contains an introduction, thirteen chapters, and five appendices. In the introduction it is explained that, although cements may vary in chemical nature from casein to iron oxide, yet, by common consent and because of the enormous practical importance of calcareous cements, the term cement, used without qualification, is restricted to them; and it is of calcareous cements alone that the book treats. There are, as Mr Blount points out, numerous varieties of such cements, but they all fall into two groups, (1) the calcium silicate group, and (2) the calcium sulphate group, the first being typified by Portland cement and the second by plaster of Paris. Strictly speaking, it is with the first group alone that the author is concerned.”—Engineer


“This is a welcome addition to what may be described as the ‘popular’ literature on cement. There is indeed much in the book that should cause the cement manufacturer of today to think.” S. G. S. Panisset

+ Concrete 17:130 O ’20 640w (Reprinted from British Chemical Industry)