✦ LIBER ✦

Wolfer provisional sun-spot numbers for January to June, 1919

✍ Scribed by van Dijk, G.

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Wolfer provisional sun-spot numbers for

✍ van Dijk, G. 📂 Article 📅 1920 🏛 American Geophysical Union 🌐 English ⚖ 37 KB

Wolfer provisional sun-spot numbers for

📂 Article 📅 1919 🏛 American Geophysical Union 🌐 English ⚖ 32 KB

Provisional sun-spot numbers for January

✍ Wolfer, A. 📂 Article 📅 1922 🏛 American Geophysical Union 🌐 English ⚖ 18 KB

Wolfer provisional sun-spot numbers for

✍ van Dijk, G. 📂 Article 📅 1919 🏛 American Geophysical Union 🌐 English ⚖ 28 KB

Provisional sun-spot numbers for January

✍ Wolfer, A. 📂 Article 📅 1924 🏛 American Geophysical Union 🌐 English ⚖ 22 KB

Provisional sun-spot numbers for January

✍ Wolfer, A. 📂 Article 📅 1925 🏛 American Geophysical Union 🌐 English ⚖ 53 KB