About the Author
Dr. Ehrenfried Pfeiffer (1899–1961) was born in Munich. He worked closely with Rudolf Steiner to test and document many of the effects of biodynamic practices. Pfeiffer visited the U.S. several times during the 1930s, and was awarded a doctorate for his groundbreaking theory of Sensitive Crystallization Processes as a blood test for detecting cancer. In 1940, he immigrated to the U.S., where he pioneered biodynamic agriculture and helped establish the Biodynamic Farming & Gardening Association. He died in Spring Valley, New York.
Peter Bridgmont is involved in voice training at the Globe Theatre in London. He has been a professional actor in theater, films, and on radio and TV. In 1975 he and his wife, Barbara, opened the Chrysalis Theatre Acting School in London.
George Adams (1894-1963)was born in Poland and received an honors degree in Chemistry from Cambridge University. He was a close student of Rudolf Steiner, and translated many of his lectures given to English-speaking audiences. Being a Jew, when Hitler rose to power he changed his name from Kaufmann to Adams and left Germany for England, where he continued his anthroposophic activities and scientific research. In 1935, Olive Whicher joined Adams in London and worked with him in research into mathematics and physics until his death in 1963. He translated and published numerous books, lectures, and articles.