21981. The ætiology of Texas cattle fever: with special reference to recent hypotheses concerning the transmission of malaria Author(s): Smith, Theobald, 1859-1934, author Publication: New York : D. Appleton and Company [1899] Subject(s): Malaria -- transmissionZoonoses -- transmissionCattle
21982. Ætiology of deviations, spurs, and ridges of the nasal sæptum Author(s): Roe, John O., author Publication: New York : D. Appleton and Company, 1896 Subject(s): Nose Diseases -- etiologyNasal Septum -- abnormalitiesNose Deformities, Acquired
