It is more than a repertory. It is a method. It is also a guide to the study of materia medica. Five face types are used to indicate the means in which the remedies were encountered in the findings. Edited by T.F. Allen, this work is often prized for its accuracy and forthright argument.
Eminent US homoeopath, born in Westminster, Vermont. Son of a physician. Also renowned as an organist and composer. Ran his homoeopathic practice in Brooklyn, New York. In 1867 he became professor of Anatomy at the New York Homoeopathic Medical College. Four years later  he was appointed professor of Therapeutics and Materia Medica. He was also Director of a Homoeopathic Insane Asylum in Middletown, New York, which for decades was a centre for the research and treatment of mental disease according to scientific homoeopathic principles. -Reprinted from The Concordant Materia Medica by Frans Vermeulen; Merlijn Publishers, Duinoordstraat 78, 2023 WE Haarlem, The Netherlands. Taught materia medica and therapeutics at New York Homeopathic Medical College and was Dean of the College for some 11 years (1882-1893). Co-editor of US Medical and Surgical Journal 1867-70; NY Journal of Homeopathy 1873-74. Graduated Amherst College and NYU Medical 1861. Director of New York Botanical Gardens. Compiled the massive Encyclopedia of Pure Materia Medica, 12 Volumes, and wrote a number of other books as well. He had a son Paul Allen who graduated from New York Medical College in 1889. He taught materia medica at his alma mater. He was an active force in New York homeopathy for more than 40 years.