[CONTRIBUTIONFROM THE MASSACHUSETTSINSTITUTE OF TECHNOLOGY.]
REVIEW OF AMERICAN CHEMICAL RESEARCH. VOL. V.
No. 3 .
ARTHURA. NOYES,Editor ; HENRYP. TALBOT,Associate Editor. REVIEWERS:Analytical Chemistry, H. P. Talbot and W. H. Walker; Biological Chemistry, A. G. Woodman ; Carbohydrates, G. W. Rolfe ; General Chemistry, A. A. Noyes ; Geological and Mineralogical Chemistry, W. 0 . Crosby; Inorganic Chemistry, Henry Fay ; Metallurgical Chemistry and Assaying, H. 0. Hofman ; Organic Chemistry, J. F. Norris; Physical Chemistry, H . M. Goodwin; Sanitary Chemistry, E. H. Richards ; Technical Chemistry, A. H. Gill and F. H. Thorp.
GENERAL AND PHYSICAL CHEMISTRY. A . A . BLANCHARD,REVIEWER.
Cyclical Law of the Elements. BY THOMAS BAYLEY. J . A m . Ckem. Soc., 20, .g27-g34.--The author discusses Lothar Meyer's curve of atomic weights and atomic volumes, and presents evidence that the sixth loop or cycle embraces elements with atomic weights between that of caesium and that of an unknown alkali metal of atomic weight 2 2 3 , instead of 170, as Lothar Meyer suggested. Atomic Volume as a Periodic Function. BY THOMAS BAYLEY. /. A m . Ckem. SOC., 20, g35-g48.-Constructing an atomic volume curve like that of Lothar Meyer, drawing ordinates through the points that mark the transitions from cycle to cycle which occur just before the alkali metals, lithium, sodium, potassium, rubidium, caesium, and the value 223.7, and drawing abscissae at points corresponding to atomic volumes of 30, 60, go, 1 2 0 , etc., the author shows that it is possible to draw straight lines through their intersections, which will also pass through the positions of two or more elements, and that there is a remarkable regularity in the properties of the elements located upon these lines. T h e position and properties of numerous unknown elements in the sixth, seventh, and eighth cycles are also shown by extending the system of lines. ANALYTICAL CHEMISTRY. ULTIMATE ANALYSIS. H. P. TALBOT, REVIEWER.
I. Iletal Separations by Ileans of Hydrobromic Acid Gas.
11. Indium in Tungsten Minerals.
BY ELIZABETH ALLEN
