Logan Republican | 1904-05-11 | Page 6 | How Odors Move

HOW ODORS MOVE. H That odors movo with th'o air, iJTr BJ diffuse through It llko gases and do) BJ not pass through It in waves, as jH sounds do, or In swlftly-movlng par- H tides llko the radium emanations,: HJ seems to bo conclusively shown by' M recent experiments on thu propaga-i HJ tlon of scents through small tubes.. HJ In such tubes thero can be no goneral HJ motion of the air, and tho rata off' H travel of an odor is extremely slow. HJ That of ammonia took aver two hours H to get through a tubo a yard and a BJ halt long. Tho presenco of the am- H monia could bo dotected chemically atri H nbout the samo timo that its smell H was noticed. It seemed to make lit- H tlo difference In tho speed whether tho HJ tubo was held horizontally or vcrtt- H cally or whether tho odor moved up or down. Success. HJ