APERTURE
;—a term in farriery, applied to the orifice or opening of a tumour or abscess, whether made by Nature, or by perforation with the instrument of the operator: in either case the principal consideration must be, to have it sufficiently large for the transpiration of the offending matter for which the effort was made; if in that respect it is deficient, relief must be obtained from the hand of the VETERINARIAN.