How crops grow. A treatise on the chemical composition, structure, and life of the plant, for all students of agriculture .. [book]

Samuel William Johnson
1868 unpublished
It must not, Lowever, be forgotten, that a valuable principle is often arrived at from the study of facts, which, considered singly, have no visible connection with a practical result.
doi:10.5962/bhl.title.56573 fatcat:gjsyg6pr2vcszcgkyazerj4n4i