Show i i. i Machine l Invented I Which Records Ever Every Motion l of the Heart Chicago o Sept 29 A A A machine I which records every o motion of oC tho the I heart healt was exhibited today before the tho i I convention of the tho American X ray I society It Is called an electrocardiograph electrocardiograph electro electro- cardiograph and b by Its uso use It was f explained physicians ma may obtain I records which arc are exact and antl which I o 0 may bo be compared later with other I records In preparing a n. diagnosis of or I I I I certain heart diseases I it I |