1935

Two methods of investigating the nature of nebular red-shift // ApJ.— V. 82.-P. 302; MtW Contr No. 527 (Совместно с R. С. Tolman). Angular rotations of spiral nebulae//ApJ.—V. 81.-P. 334; MtW Contr N 514.

1936

Luminosity function of nebulae. I. The luminosity function of resolved nebulae as indicated by theyr brightest stars // ApJ.— V. 84.- P. 158; MtW Confer No. 548. The luminosity function of nebulae. II. The luminosity function as indicated residials in velocity — magnitude relation//ApJ.— V. 84.- P. 270; MtW Contr No. 549. Effects of red shifts on the distribution of nebulae//ApJ.—V. 84.- P. 517; MtW Contr N 557. Effects of red shifts on the distribution of nebulae // PNAS.— V. 22.- P. 621.

Ways of science//Bull. Occidental College, n. s.— V. 14- No. 1.

The realm of the nebulae. Oxford Univ. Press. New Haven,—London: Humphrey Milford.

A super-nova in the Virgo cluster // PASP.— V. 48.- P. 108 (Совместно с G. Moore).

1937

The observational approach to cosmology (Rhodes memorial lectures).— Oxford, Clarenden Press.

Red shifts and the distribution of nebulae//MN.—V. 97-P. 506.

Our sample of the universe//Scientific Monthly.—V. 45.-P. 481; Carnegie Inst. Washington. Supplemantary Publ. N 33.

New comet // Harvard College Observatory. Announcement Card No. 423.

1938

Adventures in cosmology//Leaflet Astron. Soc. Pacific N 115.

The nature of the nebulae//PASP.—V. 50.- P. 97.

Das Reich der Neb el.—Braunschweig: Verlag Friedr. Vieweg and Sohn. Explorations in the realm of the nebulae // Cooperation in research. Washington, Carnegie Inst. Washington,— P. 91. Jupiter X and Jupiter XI // Harvard College Observatory. Announcement Card No. 465 (Совместно с S. Nicholson).

1939

Barred spirals // PAAS.— V. 9.- P. 249.

The motion of the galactic system among the nebulae // Journal Franklin Inst.— V. 228.- P. 131.

The new stellar systems in Sculptor and Fornax//PASP.—V. 51.-P. 40; MtW Repr No. 160 (Совместно с W. Baade).

Points of view: experiment and experience // Huntington library quarterly.— V. 2.- No. 3.- P. 243.

The nature of the universe // Ann. Rep. Smithsonian Inst, for 1938.-P. 137.

1940

Problems of nebular research // Scientific Monthly. — V. 51.- P. 141.

1941

Supernovae//PASP.— V. 53.- P. 141.

The direction of rotation of spiral nebulae // Science.- V. 93,- P. 434.

The role of science in a liberal education // University and the future of America.— Stanford Univ. Press.— P. 137.

Zwicky's systems in Sextant and Leo//Scientific Monthly.—V. 52.-P. 486.

The problem of the expanding universe // Science.— V. 95.- P. 212; American Scientist— V. 30.- P. 99.

1943

The direction of rotation in spiral nebulae // ApJ.— V. 97.- P. 112;

MtW Contr No. 674. The problem of the expanding universe//Ann. Rep. Smithsonian Inst, for 1942-P. 119; Publ. Smithsonian Inst., N 3707; Sci. Monthly.-V. 56.-P. 15.

1945

The problem of the expanding universe//Science in progress. Third Series.— New Haven; Yale Univ. Press.— P. 22. The exploration of space//The scientists speak. Ed. W. Weaver.— New York: Boni and Baer,— P. 37.

1946

The exploration of space // PA.— V. 54.- P. 183.

1947

The 200-inch telescope and some problems it may solve//PASP. V. 59.- P. 153.

1948

Mars and the 200-inch telescope // Monthly Notes of the Astronomical Society of Southern Africa.— V. 7.- P. 15.

The greatest of all telescopes // Listener.— V. 15.- No. 1025.

1949

First photographs with the 200-inch Hale telescope//PASP.—V. 61.- P. 121; MtW and Pal Repr N 4. Five historic photographs from Palomar//Scientific American.— V. 181.- P. 32.

1950

Fotografias historicas del Gielo tomadas en el observatorio Palomar // Boletin de Giencia у Technologia,- N 2.- P. 22. The 200-inch Hale telescope and some problems it may solve//Ann. Rep. Smithsonian Inst, for 1949.- P. 175; Smithsonian Inst. Publ. No. 3999.

1951

Explorations in space: the cosmological program for the Palomar telescopes//Proc. Amer. Philosoph. Soc.— V. 95.-P. 461; MtW and Pal Repr No. 55.

1953

The brightest stars in extragalacfcic nebulae I. M 31 and M 33//ApJ.— V. 118.- P. 353; MtW and Pal Repr N 107 (Совместно с A. Sandage).

1954

The law of red-shifts // MR— V. 113.-P. 658; MtW and Pal Repr N131. The nature of science and other lectures.—San Marino, California:

The Huntington Library. Funf historische Himmelsphofcographien vom Mt. Palomar // Naturwiss. Rundschau.— B. 7.- S. 137.