Show mineral mixtures quite necessary for hog herd swine growers who are puzzled about mineral mixtures will find their questions answered in the following formulas which include the essential ingredients combined in the right pro portions por tlona tiong A careful survey of experimental work with minerals suggests the following mixtures four parts field add phosphate or two or one port part parts rock phosphate bone meal with four parts ground limestone or six parts wood ashes or one part air slacked or hydrated lime with one part salt |