A practical treatise on the use of Peruvian and Ichaboe African guano, the most powerful, portable, and the cheapest manure in the world, with rules for its application to all soils and crops, horticulture, greenhouses, &c.; to which is added valuable information on wheat culture, and the nature and modes of using gypsum as a manure, with accounts of numerous experiments.
Sheppard, John H.
London: Simpkin, Marshall, & Co., Liverpool: George Philip,
1844.