✦ LIBER ✦

On the Number of Spiral Nebulæ

✍ Scribed by Heber D. Curtis

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Motion of the Spiral Nebulæ

✍ EAGLE, ALBERT 📂 Article 📅 1939 🏛 Nature Publishing Group 🌐 English ⚖ 116 KB

Velocities of the Spiral Nebulæ.

✍ MACMILLAN, W. D. 📂 Article 📅 1932 🏛 Nature Publishing Group 🌐 English ⚖ 132 KB

Recession of the Spiral Nebulæ

✍ MILNE, E. A. 📂 Article 📅 1935 🏛 Nature Publishing Group 🌐 English ⚖ 99 KB

The Number of the Spiral Nebulae

✍ Heber D. Curtis 📂 Article 📅 1918 🏛 University of Chicago Press 🌐 English ⚖ 297 KB

The Parallaxes of Globular Clusters and

📂 Article 📅 1920 🏛 Nature Publishing Group 🌐 English ⚖ 124 KB

ON SPIRAL NEBULAe

✍ Barus, C. 📂 Article 📅 1920 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 172 KB