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bookidcu bookidcu bookyear bookyear bookdecade bookdecade bookcentury bookcentury bookauthormcfarlandjoseph bookauthormcfarlandjoseph booksubjectbacteriology booksubjectbacteriology booksubjectpathogenicbacteria booksubjectpathogenicbacteria booksubjectprotozoa booksubjectprotozoa bookpublisherphiladelphiaandlondonwbsaunderscompany