Appendix ViT. 



REPORT OF THE EDITOR. 



Sir: I have the honor to submit the following report on the publicationw of the 

 Smithsonian Institution ami its bureaus during the year ending June 30, 1902: 



I. SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGK. 



1373. Hodgkins fund. The Structure of the Nucleus, a continuation of "Experi- 

 ments in Ionized Air," by Carl Barus, Hazard professor of physics in Brown Univer- 

 sity, Providence, R. I. City of "Washington: Published by the Smithsonian Institu- 

 tion, 1902. Quarto. Pages xiv, 176. 



1413. [In press.] Hodgkins fund. On the Absorption and Emission of Air and 

 its Ingredients of Wave Lengths from 250 ///< to 100 ////, by Victor Schumann. City 

 of Washington: Published by the Smithsonian Institution, 1903. Quarto. Pages 

 IV, 30, 4 plates. 



The above mem(jirs complete Volume XXIX of Contributions to Knowledge, as 

 follows: 



Smithsonian Contributions to Knowledge. Vol. XXIX. City of Washington: 

 Published by the Smithsonian Institution, 1903. Quarto. 



CONTENTS. 



Advertisement, p. iii. 



List of Officers, Members, and Regents, p. viii. 



Article I (842). On the Application of Interference Methods to Spectroscopic Measurements. By 

 Albert A. Michelson. Published 1892. 4to, 24 pp., 5 plates. 



Article II (980). On the Densities of Oxygen and Hydrogen, and on the Ratio of their Atomic 

 Weights. By Edward W. Morley. Published 1895. 4to, xii, 117 pp. 



Article III (989). The Composition of Expired Air and its Effects upon Animal Life. By .1. S. Bill- 

 ings, S. Weir Mitchell, and D. H. Bergey. Published 1895. 4to, iii, 81 pp. 



Article IV (1033). Argon, a new constituent of the Atmosphere. By Lord Rayleigh and Prof. 

 William Ramsay. Published 1896. 4to, iii, 43 pp. 



Article V (1034) . Atmospheric Actinometry and the Actinic Constitution of the Atmosphere. By 

 E. Duclaux. Published 189G. 4to, iii, 48 pp. 



Article VI (1126). A Determination of the Ratio (K) of the Specific Heats at Constant Pressure and 

 at Constant Volume for Air, Oxygen, Carbon-Dioxide, and Hydrogen. By O. Lummer and E. Prings- 

 heim. Published 1898. 4to, v, 29 pp., 1 plate. 



Article VII (1309). Experiments with Ionized Air. By Carl Barus. Published 190 L 4to, x, 95 pp. 



Article VIII (1373). The Structure of the Nucleus, a continuation of " Experiments with Ionized 

 Air." By Carl Barus. Published 1903. • 4to, xiv, 176 pp. 



Article IX (1413). On the Absorption and Emission of Air and its Ingredients for Light of Wavc- 

 Lengths from 250 /ol^i to 100 fi/n. By Victor Schumann. PublLshed 1903. 4to, iv, 30 pp., 4 plates. 



Memoirs on Whalebone Whales of the Western Atlantic, by F. W. True, and on 

 Comparison of the Features of tlu^ Earth and the Moon, by N. S. Shaler, were in final 

 preparation for press at the close of the fiscal year. 



II. MISCELL.\NEOUS COLLECTIONS. 



A revised edition of Smithsonian Physical Tables, a list of publications by the 

 Institution, and a pamphlet concerning the International Exchange Service, were 

 issued in the series of Miscellaneous Collections. Several papers were in i)ress at the 

 close of the year. 



89 



