Inner Traditions International, Rochester, Vermont, USA 1991.
Unexpurgated version with sanskrit texts and new introduction.

Original #Sanskrit texts, a bibliography, and illustrations are included in the #book, which is the most scholarly, detailed, and concise account of the #aims, #methods, #results, and various forms of #Yoga yet published in this country.
ENQUIRY, Mark Holloway.

https://www.alaindanielou.org/books/corpus/india/yoga-mastering-the-secrets-of-matter-and-the-universe/