J. C. Ayer Co.

J. C. Ayer Co. was a Lowell, Massachusetts patent medicine manufacturer, founded by James Cook Ayer, its namesake, in 1841 as J. C. Ayer & Co. (later becoming simply the Ayer Company in 1925, and Ayer Co. Inc. in 1939).

Ayer Product Line

 * Ayer's Ague Cure, anti-malarial tonic
 * Ayer's Cathartic Pills, laxative
 * Ayer's Cherry Pectoral, cough medicine
 * Ayer's Hair Vigor, hair growth tonic
 * Ayer's Sarsaparilla, "blood medicine"

Ayer's American Almanac
The company issued an annual almanac, the bulk of the content being advertisements for its products, with the remainder being historical factoids, astrological information, and other items of interest.