An ad. Learn all about Electrical Psychology, which has nothing to do whatsoever with Electricity, but since that was popular and modern sounding, go with it. You will also learn how to make a horse stand by his food and not eat it, AND cure a horse from "the crib or sucking wind." Making a horse "temporarily lame" is obvious - kick Ol' Nobbin, but not too hard - but I imagine this is some special Mystery that involves a poultice of bee stingers and pig fat. These horse secrets are being continually sold for $1 each.

As for the part about learning how to "cover up the heaves," we all know that one: "flush while you're doing it."