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One Hundred Exercises In Agriculture: A Laboratory Manual And Notebook (1916) by John Henry Gehrs is a comprehensive guidebook for students and enthusiasts of agriculture. The book contains a hundred exercises that cover a wide range of topics in agriculture, including soil analysis,... Read Full Overview

One Hundred Exercises in Agriculture: A Laboratory Manual and Notebook is a book written by John Henry Gehrs and originally published in 1916. The book is a comprehensive guide to agricultural practices and techniques, featuring 100 exercises that cover a wide range of topics... Read Full Overview