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Early in the twentieth century, pharmacists/druggists were regarded as de facto physicians, psychologists, chiropractors, and veterinarians to the common man, while their stores sold housewares, office supplies, gifts, toilet preparations, tobacco, and hard drugs that were at the time freely sold over the counter.
During the Great Depression, books of pharmaceutical and chemical formulas were reformatted for layman readers, promising that they could 'save hundreds of dollars by making things for yourself and your friends.' In the 1930s, these books were seen in most homes next to yearly almanacs and Websterís Dictionaries.
The most practical and scientifically correct formula book, as edited by the chemist Harry Bennett, was one called The Standard Book of Formulas: How to Make What You Use... Over 2,000 Practical Modern Working Formulas for Making Useful Products, now available again from Feral House as Two Thousand Formulas, Recipes and Trade Secrets.