. The diseases and disorders of the ox, with some account of the diseases of the sheep. DISEASES OF THE OX AND SHEEP. 275 the oogonium. There also grow from the cell thin filaments termed antheridid, which pass towards the oogonium with the material of which they merge. The oogonium then develops into a number of spores which escape and form moulds again. The actinomyces which we have already described, when magnified seven hundred diameters, is seen from the accom- panying figure to be arranged in a radiate manner around a central homogeneous mass and is relegated to the Ustilaginese. We prop
. The diseases and disorders of the ox, with some account of the diseases of the sheep. DISEASES OF THE OX AND SHEEP. 275 the oogonium. There also grow from the cell thin filaments termed antheridid, which pass towards the oogonium with the material of which they merge. The oogonium then develops into a number of spores which escape and form moulds again. The actinomyces which we have already described, when magnified seven hundred diameters, is seen from the accom- panying figure to be arranged in a radiate manner around a central homogeneous mass and is relegated to the Ustilaginese. We propose, after these preliminary remarks, to consider the symptoms caused by the growth of the fungus actinomyces. The usual seat of the tumours caused by tlie actinomyces is some part of the mouth, in most instances the tongue being. Fig. 35.—Tuft of Actinomyces, Highly Magnified. the organ only or specially invaded. When in the tongue, the growths are noticed to vary in size from that of a tiny spot to that of a small orange. As a rule they grow rapidly, and may speedily invade the greater part of the tongue, and even the neighbouring parts. When the tongue is examined, one finds the elevated portions or prominences in greater or less abundance on the upper surface or on one or both sides of the organ. Sometimes they are found covering the entire surface. In appearance they look like excrescences flattened on the surface, or, if they have been in existence some time,'they may appear as irregular ulcers, the inflammatory product caused by the growth of the fungus having broken up. Such excrescences or ulcers may be found singly or in little groups. The tongue itself is enlarged and hardened, and may be ulcerated in one or many 18 *. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gresswell, George; Gresswell,
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