✦ LIBER ✦

ABORIGINAL COPPER MINES OF ISLE ROYALE, LAKE SUPERIOR

✍ Scribed by WILLIAM H. HOLMES

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Copper Mining, Copper Cycling and Mercur

✍ W. Charles Kerfoot; Jerome O. Nriagu 📂 Article 📅 1999 🏛 Elsevier 🌐 English ⚖ 87 KB

THE FORMATION OF LAKE SUPERIOR COPPER

✍ Lane, A. C.; Fernekes, G. 📂 Article 📅 1907 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 64 KB

SOME PROBLEMS CONNECTED WITH DEEP MINING

✍ McNair, F. W. 📂 Article 📅 1907 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 290 KB

Anthropogenic Copper Inventories and Mer

✍ W. Charles Kerfoot; Sandra Harting; Ronald Rossmann; John A. Robbins 📂 Article 📅 1999 🏛 Elsevier 🌐 English ⚖ 465 KB

The copper-bearing rocks of Lake Superio

✍ SELWYN, A. R. C. 📂 Article 📅 1883 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 69 KB

The copper-bearing rocks of Lake Superio

✍ IRVING, R. D. 📂 Article 📅 1883 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 216 KB