IN 1597 nataillon, Ilubard, and Terre (l) published a description of a disease in a, carp mhicli they coiisidcred to he tuherculosis on account of tlie histological appearances of tlie lcsion mid the presence of bacilli wliicli closely rcscmbled the tiiberclc bacillus. The lesion occurrcd in the form of a tumour-like smelling about the size of a pigeon's egg situated between tlic abdominal wall and the ovary. Tlic mass did not show cascation but the tissue was easily !)roken up, and on microscopic cxaniination it was found that the lesion contained nunierous giant cells within wliicli there were large numbers of radially nrrsnged acicl-fast hacilli. I n morphology and in staining reactions the bacilli were identical with tlie tubercle bacillus, from which, however, they differed markedly in t,heir biological charactrrs. The bacillus grew readily on ordinary

West Riding County Council On Aug. 19, 1943, the County Medical Officer of the West Riding of Yorkshire was informed that the practitioners in Knaresborough Urban District had throughout that day been

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