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Helen B. Sawyer A Bibliography of Individual Globular Clusters

Helen B. Sawyer A Bibliography of Individual Globular Clusters

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NGC 6205 (Cont.)<br />

A <strong>Bibliography</strong> <strong>of</strong> <strong>Globular</strong> <strong>Clusters</strong> 421<br />

1900 Barnard, E. E. Some abnormal stars in the cluster M 13 Herculis. Ap. J.,<br />

v. 12, p. 17(3.<br />

1900 Barnard, E. E. Discovery and period <strong>of</strong> a small variable star in the cluster<br />

M 13 Herculis. Ap. J., v. 12. p. 182.<br />

1900 Hale, G. E. Photographs <strong>of</strong> star clusters made with the forty-inch visual<br />

telescope. Yerkes Bull., no. 15; (Plate), Ap. J., v. 12, p. 161.<br />

1901 Holetschek, J. Cber den Helligkeitseindruck von Sternhaufen. Vienna,<br />

A". Akad. Wiss. Math-Natur. Kl. Sitz. 110, abth. Ha, pp. 1253-97.<br />

1902 Barnard, E. E. Micrometrical measures <strong>of</strong> individual stars in the great<br />

globular clusters. Am. A. S. Pub., v. 1, p. 193; Science, v. 17, p. 330, 1903.<br />

1903 Ritchey, G. W. Astronomical photography with the forty-inch refractor<br />

and the two-foot reflector <strong>of</strong> Yerkes. Yerkes Pub., v. 2, pt. 6, (Plate).<br />

1903 Schaeberle, J. M. On the physical structure <strong>of</strong> the great cluster in Hercules.<br />

A. J., v. 23, p. 226.<br />

1904 Plummer, H. C. The positions <strong>of</strong> seventy stars in the cluster M 13 Herculis.<br />

M. X., v. 65, pp. 79-83.<br />

1905 Ludendorff, H. Der grosze Sternhaufen im Herkules Messier 13. Potsdam<br />

Pub., v. 15, no. 50, pp. 1-56 (Catalogue <strong>of</strong> 1118 stars).<br />

1905 Perrine, C. D. Die Helligkeiten der Sterne in Sternhaufen. Himniel und<br />

Erde, v. 17, p. 330.<br />

1905 Plummer, \V. E. The great cluster in Hercules. M. N., v. 65, pp. 801-13.<br />

1906 Barnard, E. E. Visual observations <strong>of</strong> a variable star in the cluster M 3<br />

(NGC 5272). A. X., v. 172, p. 348.<br />

1908 Ludendorff, H. Xachtrag zu der Abhandlung "Der grosze Sternhaufen im<br />

Herkules Messier 13." .4. N., v. 178, pp. 369-79.<br />

1909 Barnard, E. E. On the colors <strong>of</strong> some <strong>of</strong> the stars in the globular cluster<br />

M 13 Herculis. Ap. J., v. 29, p. 72.<br />

1909 Fath, E. A. The spectra <strong>of</strong> some spiral nebulae and globular star clusters.<br />

Lick Bull., no. 149, pp. 71-7.<br />

1909 Kapteyn, J. C. On the absorption <strong>of</strong> light in space. Second paper.<br />

Ap. J., v. 30, p. 316. (Color-spectrum observations by Babcock and Fath).<br />

1911 Plummer, H. C. On the problem <strong>of</strong> distribution in globular star clusters.<br />

M. N.,v. 71, pp. 460-70.<br />

1913 Adams, W. S. The spectra <strong>of</strong> some individual stars in the Hercules cluster.<br />

A.S.P. Pub., v. 25, p. 260.<br />

1913 Chretien, H.<br />

pp. 1047-50.<br />

Sur l'analyse statistique des amas d'etoiles. C. R., v. 157,<br />

1914 Barnard, E. E. Photographic determination <strong>of</strong> the colors <strong>of</strong> some <strong>of</strong> the<br />

stars in the cluster M 13 (Hercules). Ap. J., v. 40, p. 173.<br />

191 1 Pease, F. G. Spectra <strong>of</strong> stars in the Hercules cluster M 13. A. S. P. Pub.,<br />

v. 26, p. 204.<br />

1915 Bailey, S. I. <strong>Globular</strong> clusters: distribution <strong>of</strong> stars. Hare. Ann., v. 76,<br />

no. 4.<br />

1915 Shapley, H. Studies. II. Thirteen hundred stars in the Hercules cluster<br />

i Messier L3 .<br />

Ml.<br />

II'. Cont., no. 116.<br />

L915 Shapley, H. Four new variable -tars in the Hercules cluster. .1. 5. 1'. Pub.,<br />

v. 27, p. 134; p. 23S. A seventh variable star in the Hercules cluster.

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