Heart after washing, rapid recovery of 1965 



and circulation, mechanics of 839 



beat 259, 523, 916, 1358, 2112 



, character of 207 



, increases amplitude of 1496 



cell proteins (see also proteins) 837 



comparable to vertebrates 588 



, complete stoppage of 1965 



, control of 839 



, direct contrast to experiments on rat 930 



doubly innervated 1972 



, excised 1372 



excitatory substances 615 



, excites 1968 



, extraordinary sensitivity to LSD 1977 



, frog 710 



hemoglobin 1235 



hemolymph 710 



, homogenates of whole 2066 



inhibitory substances 615, 2114 



isolated 349, 615, 617, 710, 1569, 1653, 1786, 1855, 1910, 1964, 1965, 1967, 



1970, 1975, 1979, 1980, 1988, 1989, 1991, 2049 

 , frog 1986 



method 1813 



microsomes 837 

 _ muscle 130, 2066, 2112 



cells 1060, 2115 



_, no nerve cells in 588 



_, normal inhibition of clam 1510 



of cat 2213 

 _, passing from visceral ganglion to 207 



rate 1822 

 _, regulator of Mercenaria 1759 

 _, repetitive stimulation of 952 

 _, resting 253 

 _, seasonal variation in performance of 699 



smooth muscle 2023 

 _, stopped 1099 



stops in diastole 1986, 1989 

 _ tissue 1159, 1372 



wall 1028 



Hearts 608, 1473, 2135 



i accelerates crustacean 608 



, bivalve 2107 



, hypodynamic clam 930 



, induce beating in quiescent 1497 



, inhibits mammalian 930 



714 



