嗅覚に関する研究—第9報 閾値上嗅覚について

　I．諸言

　余等の嗅覚計の中，圧力試験法に依る閾値上刺激実験については先に発表した（本誌：31巻7号）が，今回は稀釈試験法の一変法と見做し得るゴム嗅覚計を試作して閾値上刺激試験を施行したので報告する。

　Studies on osmatics are continued by determining the threshold of smell by means of rubber-osmato-meter on 14 individuals who were normal in the nasal anatomy.

　The sense of smell increased with the increase smell stimulation. There was a slight increment in the threshold with this increase but on the whole the thresholds in different tests were fairly constant in their findings which was in agreement with the theory advanced by weber.