This book here is mostly authentic breathing exercises from Hindu lore (some of which are taught by Yogis today quite frequently) but the author was *probably* William Atkinson, a New Thought author and publisher thought to be the hand behind works listed under the auspices of a "Yogi Ramacharaka"- indeed the introduction deconstructs the concept of a Yogi and excuses the use of the term by those not entirely encompassed by Hinduism at large.
It's well made; the exercises are fairly simple and mostly used to increase health and physical vigor, although it also mentions the mental and psychic.
75 pages.
