A part of these essays has appeared in The Century Magazine, and their publication has aroused the profound displeasure of many serious and possibly important persons. The pieces have been variously denounced as destructive, igno rant, rotten, wrong-headed, and detrimental to progress. This writer deplores these criticisms, for, while it is true that he had no intention to moralize or to improve the world, he did attempt to recount in a fair and restrained manner the reactions which twelve years of contact with medicine men have called forth in him.