Modern High Farming. a Treatise on Soils, Plants, and Manures
The Phosphates Of America
The phosphates of America. Where and how they occur; how they are mined; and what they cost. With practical treatises on the manufacture of sulphuric . and selected methods of chemica
The phosphates of America. Where and how they occur; how they are mined; and what they cost. With practical treatises on the manufacture of sulphuric acid, acid phosphate, phosphoric acid, and concentrated super-phosphates, and selected methods of chemica
The Phosphates of America: Where and How They Occur, How They Are Mined, and What They Cost, with Practical Treatises On the Manufacture of Sulpheric . and Selected Methods of Chemical
The Phosphates of America: Where and how They Occur; how They are Mined; and .
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