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A BRIEF HISTORY
THE LIGHT TRAP RESPONSE
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125 watt lamp 125 watt MB 80 watt a.c. supply Actinic 5 Lamps Actinic traps Actinic tubes ampere-hour amps attract baffles battery bayonet cap circuit colour compared connections construction control gear current drawn effective Entomologists fluorescent tube habitats Heath trap human eye intensity Journal of Variation killing agents lamp holder lepidopterists light source light traps lumen macro-moths mains electricity mains electricity supply manufacturers measure mercury vapour metal halide lamps metres moth traps moths fly mounted night nm band numbers of moths ommatidia Osram outer glass envelope output particular pin bayonet cap plastic portable power-factor correcting capacitor produced radiation rain range Record and Journal relative Robinson trap Rothamsted Experimental Station Rothamsted trap screw cap sheet shown in Figure shown in Plate Skinner trap standard switch trap base trap design trap operators Tungsten ultra-violet light UV-A UV-B visible light visible spectrum Waring watt MB lamp wavelengths woodland