Homeopathic Materia Medica with Repertory by Boericke
This has been a standard respected homeopathic reference since the 1920s.
A lovely compact edition widely used over the years by homeopaths worldwide ever since it was compiled.
This is the book that started Vithoulkas off (!) If you read his Talks on Classical Homeopathy, he relates how he stumbled upon a copy for the very first time!
This also contains a small repertory compiled by Oscar Boericke.
One of the most reliable matertia medicas to be found anywhere.
Used as the foundation of Phatak's Materia Medica.
Strong binding, easy to carry about and full of the important stuff. What more could you want?