Bos 
Miscellaneous Intelligence. 
(3) 
Or 
co 
EK. R. von Narprorr: A new apparatus for studying color phenomena. 
F. S. Muckey and WILLIAM Hattocr: Voice production, with photographs 
of the vocal cords in action. Voice analysis, with photographic record. % 
W. LEContTE STEVENS: Note on the limits of range of the human voice. 
J. F. Monier and W. J. HumMpeReyYS: Observations on the relations of cer- 
tain properties of line spectra to the physical conditions under which they are 
produced. 
F. HE. Ives: The reproduction of colors by photography. 
WILLIAM HALLOCK: Electrolytic reproduction of resonators, A photographic 
method of comparing the pitch of tuning forks. _ [llustration of gems, seals, etc. 
Color definitions for the Standard dictionary. 
Wm. A. RoGers: An examination of the statement of Maxwell that all heatis 
of the same kind. A new determination of the relative lengths of the yard and 
meter. The effect of age upon the molecular structure of bronze, glass and 
steel. 
H. W. Mortey and Wm. A. RoGers: Expansion of Jessop’s steel, measured 
by interferential method. 
JOHN D. PARKER: California electrical storms. 
L. A. BAvER: A new formulation of the second law of thermodynamics. 
FREDERICK BEDELL: The method of reciprocal points in the graphical treat- 
ment of alternating currents. 
H. D. Caruart: An experimental investigation of the rotatory field. 
C. D. Cattp: Phenomena with electric waves analogous to those of light with 
a diffraction grating. 
Wiis L. Moore: Relations of the Weather Bureau to the science and 
industry of the country. . 
FRANK H. BIGELOW: Solar magnetic radiation and weather forecasts. 
CLEVELAND ABBE: Clouds and their nomenclature. 
ALFRED J. Henry: Cloud photography. 
SECTION C. Chemistry. 
W. P. Mason: Foreign laboratory notes. 
ELLEN H. RicHARDS and J. W. EHiumMs: The coloring matter of natural 
waters; its source, composition and quantitative measurement. 
H. N. Stokes: Helium and argon. 
F. P. VENABLE: Recent views on the periodic system. 
C. H. Herty: Double salts and allied compounds. 
HE. W. Morey: On the volumetric composition of water. 
W. A. Noyes: Camphoric acid. Journal reviews. 
ALEX. SmiTH: Constitution of the 1:4 dikestones. 
P. C. Freer: The constitution of tetrinic acid. The teaching of organic 
preparations: the time, scope, methods and previous preparations. On the sul- 
phides of arsenic formed in analytical work. 
A. B. Prescott: Periodides. Periodides of pyridine. A few pyridine alkyl 
normal iodides. Some inquiries respecting inherent limitations in the accuracy 
of analytical work in general. 
R. F. FLINTERMAN and A. B. Prescott: Dipyridine trimethylene dibromide. 
C. L. JAcKksonN: Some new color reactions. A second modification of picryl- 
malonic ester. Instruction in general chemistry. 
C. B. DupLEY: Remarks on international standards of analysis of steel. 
A. A. Buatr and J. E. WHITFIELD: Ammonium phospho-molybdate and the 
reducing action of zinc in the reductor. 
HE. D. CAMPBELL: Provisional schedule of admissible limits of accuracy in 
certain metallurgical analyses. 
F. P. Dewey: Accuracy in metallurgical analysis. 
T. H. Norton: On the use of thioacetic acid as a laboratory reagent. The 
phosphorus contained in phospho-cereal. Discussion on important phases of 
didactic chemistry. Laboratory construction and equipment. 
R. B. WaARDER: The major premise in physical chemistry. 
A. A. Noyes: Contributions to the knowledge of the laws of the velocity of 
polymolecular reactions. 
H. ©. Botton: Bibliography as a feature of the chemical curriculum. 
J. L. Howe: Relative order of theory and description in the teaching of 
general chemistry. 
