✦ LIBER ✦

Electric light and sunlight for plants : (Clip Sheet No. 312, U. S. Department of Agriculture.)

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Radio and drought : (U. S. Department of

📂 Article 📅 1932 🏛 Elsevier Science 🌐 English ⚖ 107 KB

Turpentine and rosin : (Clip Sheet, U. S

📂 Article 📅 1925 🏛 Elsevier Science 🌐 English ⚖ 62 KB

Motor trucks for milk transportation: (C

📂 Article 📅 1924 🏛 Elsevier Science 🌐 English ⚖ 56 KB

Special weather service for Amundsen's f

📂 Article 📅 1925 🏛 Elsevier Science 🌐 English ⚖ 65 KB