Show improved cas light according to lo th the amerl tin cin ex aci indents are arc at ir present e ent la in pro pre press greys in pin is the result of aich it is coped to o in increased light effi efficiency cienci from cant gas gab burner under present conditions uie oie gis pr pressure escure in the maini main is sut suf firment to dr art nn I 1 cei certain tain amount of air rito nto the burner NA here it b comes mix mil rd d with the EI cading the r hatic blue name flame ciul lot thi the amount or of air thus damn into the alime 11 line is ii onia it out three times that of the gat whereas heras for the best eucce the ration hould bould be five to ore it has been found tint that by compressing compress lne the gis in tie the mains m tins the desirable ratio of air ran con be caused to enter hp tap feinle fl inie one of the in PIs his lamps i orl orang ing on this system and tho the re alts are exceedingly |