Annual Report of the Board of Regents of the Smithsonian Institution

12 months according action American animals appears atom Balance become body building Cape carried cause charge chemical close collections complete Congress connection continued direction dogs earth effect electric energy entirely evidence existence experiments fact feet foot give given head heat hour important Institution interest Island July June 30 known laborer land less light magnetic March material matter means measurements method miles Museum nature necessary noted observations obtained original pass period plants plate position possible prepared present pressure probably produced publications radiation radium rays reached region relation remains seems seen ship shown side silver sledges Smithsonian species supplies surface temperature theory thousand tion United weather