A treatise on acupuncturation, being a description of a surgical operation originally peculiar to the Japonese and Chinese, and by them denominated zin-king, now introduced into European practice, with directions for its performance, and cases illustrating its success.

The first English monograph on acupuncture. Churchill had most success with rheumatic conditions, sciatica, back-pain, etc. Digital facsimile from the Internet Archive at this link.

The German translation of Churchill's book, Abhandlung über die Acupunctur. Aus dem Englischen übersetzt von J. Wagner. Mit Vorrede und Zusätzen hrsg. von J. B. Friedreich. Bamberg: Ludwig Wesché, 1824, was the first treatise on acupuncture in German.