Posted by SFgenealogy on Saturday, September 18, 2010 at 13:18:16 :

Miss Frances COOK, a doctress in San Francisco was found dead at her residence last Monday with an empty vial labeled "potassium cyanide" beside the body and Taylor's treatise upon poisons open at the page treating of the deadly properties of that drug.

Source: Contra Costa Gazette (Pacheco, Contra Costa County, CA), 29 Apr 1871. Transcribed by Dee Sardoc.