Show where the to Is no joke if the mosquito problem that Is the problem of extermination Is ever solved it will most likely be worked out down in the panama canal zone the mosquito influence down there is entirely too serious for jibes and jests and ways and means tor riddance are being studied in most serious earnest refined petroleum has been tried as a modifier of mosquito activities but q it has found that the refined ar tide will not do the crude oil is more effectual and 23 gallons of it have been ordered every mosquito territory between panama and the north pole will await results |