nerated is ob- considered to be laws. have a free vertical motion, and terminating in a fine stylus tained; and thus it isfound that the quantity of blood pumped It is now clear that, by substituting for the first foot a which traces a line on a rotating cylinder. This apparatus does not augment… … apparatus of the circu- heart under the influ- Cardiographic Tracings. lation; it is represented ence of a kind of sim- The heart and artificial vessels are disposed on an a tetanic contraction, according asthe inducing heart gives ple discharge of the nervous apparatus which the heart con- upright…
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