1. The properties of air relating to ventilation and heating Author(s): Briggs, Robert, 1822-1882, author Publication: Philadelphia : Merrihew & Lippert, 1881 Subject(s): Air -- analysisVentilationHeatingRespiration
2. On the relation of moisture in air to health and comfort Author(s): Briggs, Robert, 1822-1882, author Publication: [Philadelphia?] : [publisher not identified], [1878?] Subject(s): VentilationRespirationHumidity