were filtered through Chamberland L3 candle > and inoculated subcutaneously into guinea-p1^ In these ten experiments passages were ma , from guinea-pig to guinea-pig with emulsion lymph glands and spleens of the previous inoculated animals which were killed at reguia^ intervals and carefully examined for the Pre , ence of acid-fast bacilli. These were detecte in the whole series in 66 out of 19...