Proceedings of the American Association for the Advancement of Science

A. L. Elwyn acid arctic Association B. A. GOULD beds body Boston Buffalo Burlington Cambridge carbon chemical Chloride columns combination compound Connecticut Corals Darwinian deposits District of Columbia dyad echal elements ethyl Europe feet formation fossils Geology glacial glacier gneiss Haven hematite Hydrate Hydride hydrogen iron James Joseph Lovering June Oct June Sept Labrador latitude limestone lower silurian March June mass Massachusetts Massachusetts 13 material meeting metalloids metals modern molecule monad motion Mount Washington Mountain names Nitrogen Northern O. C. MARSH observed Ohio origin Orthoptera oxide oxygen Pennsylvania Permanent Secretary Philadelphia portion Potsdam present Prof quartz radical red sandstone represent result Rhode Island rocks sandstone schist scientific Sections septave Silurian slate snow sound species specimens Standing Committee strata structure Stylolites Sulphur surface syllables Tabulate Corals Taconic Tellurium temperature tion truth Vermont vibration William York 15