✦ LIBER ✦

Provisional sunspot-numbers for May, June, and July 1931

✍ Scribed by Brunner, W.

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Provisional sunspot-numbers for June and

✍ Brunner, W. 📂 Article 📅 1933 🏛 American Geophysical Union 🌐 English ⚖ 52 KB

Provisional sunspot-numbers for May to J

✍ Brunner, W. 📂 Article 📅 1930 🏛 American Geophysical Union 🌐 English ⚖ 33 KB

Provisional sunspot-numbers for May and

✍ Brunner, W. 📂 Article 📅 1939 🏛 American Geophysical Union 🌐 English ⚖ 25 KB

Provisional sunspot-numbers for May and

✍ Brunner, W. 📂 Article 📅 1940 🏛 American Geophysical Union 🌐 English ⚖ 23 KB

Provisional Sunspot-Numbers for June to

✍ Brunner, W. 📂 Article 📅 1944 🏛 American Geophysical Union 🌐 English ⚖ 22 KB

Provisional sunspot-numbers for May to J

✍ Brunner, W. 📂 Article 📅 1938 🏛 American Geophysical Union 🌐 English ⚖ 31 KB