Show I Investigations made in Berlin disclose jl dis-close the fact that some 30000 persons in that city can hear better in their l left ears than in the right This is because j be-cause of the use of the telephone held I in the left hand and put to the left ear i Whether the hearing in the ear used j I I Is rendered more acute or the sensi j I bllity of the other is dulled does not j appear to be determined It is probable prob-able however that the hearing power of the ear put to such use is strengthened strength-ened as it is at well established fact I that any one of the senses can be trained In acuteness If that is true It would be beneficial for those who use the telephone frequently to change about and give both cars an equal chance i |