1. The formation of vegetable mould through the action of worms: with observations on their habits Author(s): Darwin, Charles, 1809-1882 author Publication: New York : D. Appleton & Co., 1882 Subject(s): FungiOligochaetaSoil
2. Washington malaria and the "catching of cold" Author(s): Busey, Samuel C. (Samuel Clagett), 1828-1901, author Publication: [Washington, D.C.?] : [publisher not identified], [1882?] Subject(s): Malaria -- etiologySoilEnvironmentDistrict of Columbia