While Cartwright's article was reprinted in the South, in the northern United States it was widely mocked. A satirical analysis of the article appeared in a Buffalo Medical Journal editorial in 1855.[10] Renowned landscape architect Frederick Law Olmsted, in A Journey in the Seaboard Slave States (1856), observed that white indentured servants had often been known to flee as well, so he satirically hypothesized that the supposed disease was actually of white European origin, and had been introduced to Africa by traders.[11]