NEW BOOKS
ED pure, dependable lab filter papers
AU E-D lab papers are low in ash content, neutral and substantially free from solubles. These are qualitative papers, noted for con sistent accuracy and dependable uniformity. 18 grades to choose from. Smooth or creped surface, circles or folded circles, sheets, strips or rolls, in any size.
CHROMATOGRAPHY PAPER
I n addition to the desirable char acteristics mentioned above, E-D Chromatography papers permit a uniform rate of capillary climb. Available in sheets, strips or rolls. •Write for Bulletin 158, contain ing characteristics of the 12 E-D papers most frequently used for Chromatography.
The Eaton=Dikeman
geometrical blurring, film unsharpness, unsharpness due to movement, contrast, soft x-rays, increasing contrast in the | specimen, increasing contrast with phoI tographic material, and photomicro! graphs. | The text also treats such topics as • specimen preparation techniques and \ applications. Industrial use in paper, \ textile, metals, and foodstuff fields are ι discussed. Similarly handled are medi| cal-biological applications such as exi animations of bone and tissue. i About 500 references are listed in the : bibliography which covers articles on > conventional microradiography and I soft x-ray radiography, geometric x-ray ! microscopy, x-ray microscopy, and elec tron radiography. 1 Volumetric Analysis; Titration Meth ods: Oxidation-Reduction Re actions, Vol. III. I. M. Kolthoff, R. Belcher, V. A. Stenger, and G. Matsuyama. ix + 714 pages. Interscience Publishers, Inc., 250 Fifth Ave., New York 1, Ν. Υ. 1957. j
S15.00.
The first two volumes of Volumetric Analysis were published in 1942 and 1947, respectively. Volume I covered theoretical fundamentals of volumetric analysis, and Volume II followed with I a discussion of titration methods in volving acid-base, precipitation, and complex formation reactions. This book on oxidation-reduction titrations becomes the final \rolume of the set. The book contains 15 chapters, the first of which deals somewhat generally with reactions, indicators, and tech niques in oxidation-reduction titrations. This is followed by detailed coverage of potassium permanganate as a volu: metric reagent, and oxidimetry with permanganate and eerie salts. Three chapters are devoted to reagents and their standardization in iodometry, and iodometric determination of inorganic and organic substances. Chapter IX discusses determination of water with Karl Fischer reagent. Chapters X, XI, XII, and XIII cover reactions with potassium iodate, periodate, potassium bromate, and hypohalites. The 14th chapter deals with titrations with ironi l l ) , titanium (III), and other strong reducing agents, and Chapter XV closes the book with a discussion of miscellan eous titrants. The book contains both author and subject indexes.
Company
X-Ray Crystal Structure. Dan McLachlan, Jr. vii + 416 pages. Mc Graw-Hill Book Company, Inc., 330 West 42nd St., New York 36, Ν. Υ. 1957. $15.00.
MT. HOLLY SPRINGS, PA.
This book is designed to fill in the
FILTERTOWN
Circle No. 36 A on Readers' Service Card, page 69 A
36 A
·
ANALYTICAL CHEMISTRY
gap which the author feels exists be tween popular and rigorous treatment of the subject. It discusses determina tion of atomic positions within a crys talline material, using x-ray data ob tained from single crystals. It stresses the theory of space groups, single crys tal cameras, Fourier methods, comput ing devices, and the phase problem. Such computing devices as Robertson's Strip Methods, the Bragg-Huggins Mask, the Sand Machine, and the Utah Computer are described. A final chap ter gives examples of six crystalline ma terials whose structures have already been determined. The author attempts to give the be ginner, on the one hand, a foundation of crystallographic concepts. On the other hand, he has tried to give the sea soned crystallographer a new and novel treatment of a familiar subject. Many diagrams, tables, and charts are in cluded, and references are given at the end of each chapter. A name index and a subject index are included at the end of the book. A Short Course in Quantitative Anal ysis. 2nd ed. Hobart H. Willard, N. Howell Furman, and Egbert K. Bacon, vi + 243 pages. D. Van Nostrand Co., Inc., 120 Alexander St., Princeton, N. J. 1957. $4.25. The first five chapters give an intro duction to the topic and to laboratory work, and discuss measurement by weight and volume and evaluation of measurements. The three classes of titrations—acid-base, oxidation-reduc tion, and precipitate or complex form ing—are covered in the following six chapters. Two chapters are devoted to gravimetric analysis, and the final two chapters deal with gravimetric separations and with analysis by physi cal measurements. Several appendices are included, one of them describing the literature of analytical chemistry. A large number of problems are presented at the end of each chapter. Report of the Analytical Methods Committee 1956. 24 pages. The Society for Analytical Chemistry, 14 Belgrave Square, London, S. W. 1, England. 1957. No charge. This is the second report issued by the Analytical Methods Committee since its reorganization a little over 2 years ago. The report itself starts off with a general review of the progress of work, a research scholarship, the trust fund, and expenditures. This is fol lowed by three groups of reports in greater detail: the reports of the sub committees of the Analytical Methods Committee; a report of the ABCM/
