Epithelium, involution of outer 84 8 



, living ciliated 1021 



, marginal 841 



of inner surface of first mantle fold 840 



, secretory 707 



to wall ratio 925 



Epizootic 452 



Epizootiology 1831 



Epoxy glue 18 34 



Equipment 250, 1919 



Eradication 454 



Ergonovine 1986 



maleate 930 



Ergotalkaloids 1813, 1967, 1968, 1986 



Ergotamine 1028, 1986 



Ergotoxine 19 86 



Erosion, increased 2071 



Error, human 357 



Escape 207 



depth, duration of 482 



responses 98 



Escherichia 43, 232, 233, 247, 249, 356, 570, 583, 597, 787, 788, 816, 817, 



886, 1392, 1458 



Escutcheon 1430 



indistinct 426 



long and narrow 426 



well defined 425 



Eserase content, low 1691 



Eserine 588, 608, 1028, 1189, 1508, 1510, 1975 



augmentation 1569 



, scarcely affected by 1569 



sulphate 915 



Eserinized test heart 1508 



Essex, England 1931 



River, Mass. 974 



Establishment 90, 1804 



Esterase 1332, 1334, 1461, 1462 



, non-specific 595, 938 



Estimate, error of 490 



Estuaries 108, 165, 181, 225, 226, 274, 416, 514, 537, 538, 539, 593, 738, 

 1093, 1456, 1714, 1922, 1930, 2028 



Estuarine animals 1450 



areas 62, 675 



benthic invertebrates 283 



biota, effects on 228 



bivalves 571, 9 85 



bog 825 



circulation 1251 



689 



