This PDF scan is of a 99-page booklet that was obviously owned by someone who actually read and appreciated it. Penciled notes and tape repairs are evident.
The book begins as follows...
Interest continues from year to year in the possibility of growing medicinal and condiment plants for profit. Many of them are grown abroad under soil and climatic conditions similar to those in parts of this country, and large sums are expended annually for the imported products.
Our dependence on foreign sources for botanical drugs and condiments was clearly shown during the two world wars—as soon as hostilities broke in Europe shortages developed here. The supplies on hand are generally limited and soon exhausted, and in such circumstances their market value increases rapidly. This stimulates the recurring interest in growing the special crops from which they are obtained.
To reduce our dependence on importations and to provide even a small additional source of income to farmers when conditions are favorable, the cultivation of drug and condiment plants should be encouraged whenever circumstances indicate that the enterprise might be successful.
A general discussion of plant propagation and handling is followed by specific details about 60 different drug and condiment plants (from aconite to wormwood). Black and white photos of most of the plants are provided.
I see this primarily as a reference book. Anyone interested in growing herbs for personal use or as a business venture will appreciate the historical perspective and the practical insights.