"Mineral Mixtures for Swine" is the title of a four-paged mimeographed pamphlet, No. G-21, issued by the Animal Husbandry Section in December, 1920. This pamphlet was prepared to facilitate the answering of numerous inquiries in regard to the feeding of minerals to hogs. It gave suggestions to swine men concerning the practical make-up and use of mineral mixtures.
Evvard, John M., "Swine Mineral Mixtures" (1921). Circular. Paper 70.