Extract Granulomatous lesions in cats are well recognized entities and in particular lesions ascribed to various actinomycetes have been reported on a number of occasions (Ainsworth and Austwick, 1959, pp. 65–72 Ainsworth, G. C. 1962. Veterinary Annual, Edited by: Pool, W. A. 70–70. Bristol: John Wright & Sons. [Google Scholar] ). In a survey carried out by Prévot et al. (1961) Ainsworth, G. C. and Austwick, P. K. C. 1959. Fungal Diseases of Animals, 64–79. Farnham Royal: Commonwealth Agric. Bureau. [Google Scholar] it was found that, of 100 organisms isolated from chronic suppurative lesions in cats, only 5 per cent, were actinomycetes. The remaining 95 per cent. Included streptococci, staphylococci, Pasteurella septica and several members of the family Sphaerophoraceae. In all cases, the pus contained granules resembling the “sulphur-granules” commonly associated with actinomycosis.