✦ LIBER ✦

Magnetic disturbances of December 4–5, 1920, at Cheltenham Observatory, Maryland

✍ Scribed by Hartnell, George

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Magnetic disturbances December 4–6, 1920

📂 Article 📅 1921 🏛 American Geophysical Union 🌐 English ⚖ 48 KB

Principal magnetic disturbances recorded

✍ Wallis, W. F. 📂 Article 📅 1905 🏛 American Geophysical Union 🌐 English ⚖ 46 KB

Principal magnetic disturbances recorded

✍ Tittmann, O. H. 📂 Article 📅 1906 🏛 American Geophysical Union 🌐 English ⚖ 63 KB

The magnetic storm of May 13–16, 1921, a

✍ Hartnell, George 📂 Article 📅 1921 🏛 American Geophysical Union 🌐 English ⚖ 49 KB

The Aurora Borealis of March 22–23, 1920

✍ Hartnell, Geo. 📂 Article 📅 1920 🏛 American Geophysical Union 🌐 English ⚖ 107 KB

Magnetic storm of April 13–14, 1927, as

✍ Hartnell, George 📂 Article 📅 1927 🏛 American Geophysical Union 🌐 English ⚖ 46 KB