Church & Dwight's 1915 recipe book for the great Arm & Hammer soda — which also prints a perpetual calendar, because why not.

The Sense and Soda Examination

Every answer comes straight from the book. Finish and you'll get a challenge link to send a friend.

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Rights & ReuseThe complete text of Book of Valuable Recipes (1915) is in the public domain in the United States — like all works published before 1928 — and is free to read, download, quote, teach from, and reuse. This digital edition (its transcription, restored images, and site design) is © 2026 PhotoOpAI, and any editorial commentary we add is clearly marked as ours; the underlying public-domain text carries no such restriction.