Neoplastic growth 891 

 Nephridium 331, 1808 



, fine structure of 1808 



Nephthy s-Nuaula 738 



Nereid shell blisters 1784 

 Nereis 1398, 1599, 1734, 1793 

 Nerve action 19 6 8 



activity, mediate 387 



axons 388 



, branchial 14 



centers 262 



fibers 2171 



_ , longitudinal 926 



-gill preparations 14 



tissue 12, 1159, 1974, 1983 



Nerves 207, 257, 1854 



, conduction by, not by muscle 9 26 



, in molluscan intestines is by 1511 



, excitor 257 



, inhibitory 254, 256, 257, 262, 1510 



, intrinsic 1364 



, product of some inhibitor 1973 



, regulatory 1966, 1967 



, stimulate cholinergic 708 



, two lateral 1160 



Nervous inhibition 588, 150 8 



mechanism, intrinsic 1250 



origin 11 



regulation 207 



stimulation 14 



system 1776, 1966, 1976, 1984, 2154 



, central 207, 262, 647, 1977, 2076 



tissue 387, 388, 1982 



__^_^_ , follows roughly amount of 1691 



free of 257 



Net 301 

 Netherlands 953 

 Netley, England 89 

 Netting 302 



, vexar plastic 75 



Nettle, stinging 1976 

 Neural photoreceptors 9 84 



secretions 10 



Neurally 1407 

 Neuro-endocrine factors 622 



-neural synapses 710 



Neurobiology 710 

 Neurohormonal regulation 704 



753 



