1. Chemical examinations of sewer air Author(s): Nichols, Wm. Ripley (William Ripley), 1847-1886 Publication: Boston : Press of Rockwell and Churchill, 1879 Subject(s): SewageAir Pollutants -- chemistryBoston
2. Supplementary report on sewer air Author(s): Nichols, Wm. Ripley (William Ripley), 1847-1886 Publication: [Boston? : s.n., 1879?] Subject(s): SewageAir PollutantsCarbonic Acid