April 22, 1920] 



MATUME 



227 



of the^ present may be lived in accordance 

 with "ideal ends.'^ God and the future are 

 brought" in as the norms to which life has ' to 

 conform. 



This portion of the book is a brilliant piece of 

 work, and the author has brought to bear upon 

 it not only great learning, but also a lightness 

 of touch which really borders on something like 

 originality. In the hands of men such as Prof. 

 Jastrow, the Bible can again become a work of 

 immense significance. 



The next part of the book presents us with the 

 words of Koheleth in their original form, stripped 

 of later interpolations, sayings, and comments. 

 The translation of Koheleth is excellent, and in 

 reading it we seem to be brought face to face 

 with a book published yesterday, because it looks 

 upon the world of Nature and of life from a point 

 of view which cannot be neglected. Of course, 

 such aspects do not exclude others, but it is 

 always well to make the best use of each point 

 of view, and not to try to form a composite so 

 vague that no meaning can be extracted from it. 

 No doubt Prof. Jastrow had something like this 

 in mind when he undertook the preparation of 

 this volume, and we sincerely hope he will deal 

 with other composite books of the Old Testament 

 as he has done so splendidly with the Book of 

 Koheleth. 



New Books on Industrial Chemistry. 



(i) Applied Chemistry : A Practical Handbook for 

 Students of Household Science and Public 

 Health. By Dr. C. Kenneth Tinkler and Helen 

 Masters. Vol. i., Water, Detergents, Textiles, 

 Fuels, etc. Pp. xii + 292. (London: Crosby 

 Lockwood and Son, 1920.) Price 125. 6d. 



net. 



(2) Chemistry from the Industrial Standpoint. By 

 P. C. L. Thorne. (New Teaching Series.) 

 Pp. xvi + 244. (London : Hodder and Stoughton, 

 1919.) Price 45. 6d. net. 



(3) Fuel, Water, and Gas Analysis for Steam 

 Users. By John B. C. Kershaw. Second 

 edition, revised and enlarged. Pp. xii + 201. 

 (London: Constable and Co., Ltd., 1919.) 

 Price I2S. 6d. net. 



(4) Popular Chemical Dictionary. By C. T. 

 Kingzett. Pp. vi + 368. (London : Baillifere, 

 Tindall, and Cox, 1920.) Price 15*. net. 



(i) ' I *HIS work is mainly intended for students 

 A in their third year who are preparing 

 for diplomas in household and social science, and 

 for diplomas and degrees in public health of the 

 various universities. There is no work known 

 NO. 2654, VOL. 105"! 



to the reviewer that covers the ground in the 

 same manner as this. The book is clearly ..and 

 attractively written, and forms a most, useful 

 addition, not only to the academic student, but 

 also to the works chemist, who must, often 

 adjudicate upon matters such as are dealt with 

 in this work. 



The book does not deal with manufacturings 

 operations, but gives a clear and practical exposi- 

 tion (with the necessary theoretical explanations) 

 of the methods employed in analysing and apprais- 

 ing the value of water, water softening pro- 

 cesses, soap, textile fibres, bleaching agents, dry 

 cleaning, air analysis, gaseous fuels, liquid and 

 solid fuels, materials used in the protection of 

 wood, metallic and other surfaces, etc. Although 

 the authors themselves make no claim to origin- 

 ality, many of the subjects are treated in a 

 manner very different from that prevailing 

 in most of the existing works on the sub- 

 ject. Every technical chemist should possess 

 a copy of this work for reference, as there is 

 collected together here in one volume a large 

 mass of material which is usually scattered piece- 

 meal throughout a number of expensive treatises. 

 Altogether this is a book to be thoroughly recom- 

 mended, and it should command a wide sale. 



(2) Mr. Thorne has written an interesting little 

 book on a very large subject, which is clearly 

 and attractively explained, and the volume marks 

 a considerable departure from the older style 

 of text-book. Not very long ago a book of this 

 type would have enjoyed no sale, but would 

 have been coldly received in scientific circles, and 

 the advent of such a work shows what a revolu- 

 tion has been wrought in the chemical world 

 within the last few years. The reviewer cannot 

 help thinking, however, that Dr. Briscoe's excel- 

 lent introduction is somewhat hard upon the 

 business man. His own experience is that the 

 business world is very much alive to scientific 

 possibilities, whereas the purely professional 

 university-trained chemist of the past was not 

 only largely unpractical, but also held himself aloof 

 from the problems of the business man, and the 

 latter 's caution was founded in many cases upon 

 heavy losses attained by contact with the semi- 

 scientific "expert," who regards the business man 

 as his natural prey. 



For the earnest technical student or the trained 

 works chemist the book naturally Is not of great 

 use, as it cannot go into exact detail. For a 

 young chemist, however, entering works for the 

 first time, it gives an excellent summary of the 

 main operations Involved In chemical industry^ 

 and is well up-to-date as regards modern dfevelop-| 



