- 614 - 
Earthworms, 2104 
Earwigs, 1977, 2064 
Effect of external factors on toxicity, 2163 
Effect of hydrogen-ion concentration, 2162 
Effect of nicotine in tobacco on parasites, 1941 
Empoa rosae, 2410, 2424 
Enrpoasca abrupta, 2185 
11 fabae, 2240, 2333, 2345, 2411 
" facialis, 2412 
" mali, 1610, 2046, 2055, 2057, 2305, 2413, 2414 
11 uni color, 2424 
Enforcing spray residue tolerances, 1710 
Ephestia elutella, 1922 
" kuhniella, 1923, 2072 
Ephippiger, 1971 
Epicauta pennsylvanica, 2137, 2201 
Epichorista ionephela, 1924 
Epicometis, 2058 
Epilachna borealis, 2448 
11 corrupta, 2083, 2183 
Epinotia subviridis, 1885 
Epitrimerus vitis, 1565 
Epitrix cucumeris, 2073, 2344, 2444 
11 subcrimnita, 2453 
Ericampa adumbrata, 2045 
Eriocampoides limacina, 1843 
Eriosoma lanigerum, 1616, 1629, 1649, 1657, 2057, 2067, 2082, 2205 
2220, 2225, 2228, 2229, 2285 
Erythroneura comes, 1595, 2067, 2264, 2316, 2408, 2415-2418 
Ethylene di chloride, 1631 
Eucosma ocellana, 1771 - 1775, 2217 
Eudemis (see Polychrosis) 
" naevana, 1838 
Eulecanium corni, 2055 
Eulia mar i ana, 1798 
Eumerus ctrigatus, 2104 
Eurydema ornatum, 1845 
Eurytoma orchidearum, 2104, 2463 
Euscelis, 1811 
Euschistus servus, 2428 
Euthrips tritici, 2050, 2476 
Euttctrix tenella, 2419, 2420 
"Evergreen", 2243 
Evolution of gas, 1824 
Exhalations, 2137, 2155 
Patty acids, 2207 
Feltia exclamationis, 1592, 1593 
Ferric oxide, 2181, 2189 
Fidia viticida, 2309 
Fillers, 2273 
Fish oil, 1595, 1662, 1680, 1698, 1705, 1749, 1838, 1902 
Fixator, 2191 
Fleas, 2248 
Flea-hopper, 2061, 2307 
