✦ LIBER ✦

Soil Fertility and Permanent Agricultureby Cyril G. Hopkins

✍ Scribed by Review by: J. Paul Goode

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Soil Fertility and Permanent Agriculture

✍ Hopkins, Cyril G. 📂 Article 📅 1910 🏛 American Geographical Society ⚖ 101 KB

Soil Fertility and Permanent Agriculture

✍ Review by: K. C. Davis 📂 Article 📅 1913 🏛 The University of Chicago Press ⚖ 105 KB

The Conservation of Natural Resources in

✍ Review by: H. R. Mussey 📂 Article 📅 1911 🏛 Academy of Political Science 🌐 English ⚖ 330 KB

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✍ H., A. D. 📂 Article 📅 1911 🏛 Nature Publishing Group 🌐 English ⚖ 223 KB

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✍ KING, F. H. 📂 Article 📅 1911 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 150 KB

PLANT FOOD IN RELATION TO SOIL FERTILITY

✍ Hopkins, C. G. 📂 Article 📅 1912 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 344 KB