""Letters to Hereward Carrington from Famous Health Reformers"" is a book compiled by Herbert M. Shelton. The book is a collection of letters from prominent health reformers of the early 20th century, including Dr. John Harvey Kellogg, Dr. Tilden, Dr. Lindlahr, and others. These letters were written to Hereward Carrington, a well-known investigator of psychic phenomena, who was also interested in health reform. The letters discuss a range of topics...