✦ LIBER ✦

Provisional sunspot-numbers for July to September, 1957

✍ Scribed by Waldmeier, M.

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1958 🏛 American Geophysical Union 🌐 English ⚖ 49 KB

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1949 🏛 American Geophysical Union 🌐 English ⚖ 43 KB

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1950 🏛 American Geophysical Union 🌐 English ⚖ 48 KB

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1951 🏛 American Geophysical Union 🌐 English ⚖ 47 KB

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1952 🏛 American Geophysical Union 🌐 English ⚖ 47 KB

Provisional sunspot-numbers for July to

✍ Waldmeier, M. 📂 Article 📅 1953 🏛 American Geophysical Union 🌐 English ⚖ 46 KB