Show Filtered Air Is Best For Operating Room flown PULLMAN Because WASIL-Because bacteria bac bac- terla teria do not breathe but absorb ma mat materials materials only in solutions effective for fumigation is difficult dim cult and rarely succeeds according to Dr Ernest C. C C McCulloch re- re research re re- research research search veterinarian of o Washington State college For many years early bacteriologists bacteriologists bacteriologists did not know that must be carried out by means of solutions They attempted to kill bacteria by fumigation Dr McCulloch McCulloch loch said Formaldehyde vapors er 1 erthe r the fumes of burning sulphur were used |