Plans, construction details, bills of material, and estimates of cost for a number of items of handy and efficient equipment for swine raising are presented in this circular. Ideas have been gathered from many and diverse sources, particularly from the farms of progressive swine men. Practically all of the plans submitted have been thoroly tested in actual practice. Many of the items have been constructed by the Iowa Agricultural Experiment Station at Ames where they have demonstrated their worth.
Kaiser, W. G. and Evvard, John M., "Handy Equipment for Swine Raising" (1921). Circular. Paper 69.