Category:Elementary lessons in the physics of agriculture (1891)

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Media in category "Elementary lessons in the physics of agriculture (1891)"

The following 2 files are in this category, out of 2 total.

Elementary lessons in the physics of agriculture (1891) (21034214558).jpg 2,038 × 3,142; 1.02 MB
Elementary lessons in the physics of agriculture (1891) (21222120875).jpg 2,002 × 3,102; 812 KB

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