Perfume and Flavor Materials of Natural Origin by Steffen Arctander is a one in a million publication.

The book sits at my side on my bench as I blend. I refer to it everyday. It was originally published in 1961. Steffen Arctander began collecting natural aromatic materials and compiling notes on the production and origin of these materials. As well as the materials he brought back from his travels, he was sent samples from suppliers the world over. By 1958 he had an almost complete collection of perfume and flavor materials of natural origin.