362 W E GARREY Fig 3 In the upper smaller section of this graph tracings are taken from theleft L and right Bt lateral halves of the second segment of a deganglionatedLimulus heart Stimulatio ID: 91944
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362 W. E. GARREY stimulated by mild faradic shocks, the neurogenic beats ofthe homonomous half of the heart were superposed on araised tetanic base and were usually much amplified inheight, while those of the contralateral half were altered to Fig. 3 In the upper smaller section of this graph, tracings are taken from theleft (L) and right (Bt) lateral halves of the second segment of a deganglionatedLimulus heart. Stimulation of the lateral nerves, indicated by the signal magnettracing under the respective myograms, caused a higher contraction on the homo-lateral side, although the lesser effect on the contralateral side is definite. Thelower tracing is taken at a more rapid speed and shows a difference in themechanical latent period and height and contour of the records of muscle con-traction on the two sides. a far less extent. The result is significant, since the per-sistence of rhythmic contractions indicates clearly that thestimulated nerve does not innervate all of the contractileelements on the same side as would be the case if muscularconduction were effective. During' the nerve stimulation