Petiolule

In biology, a small leaf-stalk, such as those of the leaflets or folioles of compound leaves. P. epiglottidis, the narrow, attached, stalk-like portion of the epiglottis. Detiolus In biology, a stem, stalk, or petiole; as the petiolus of the epiglottis. 'etiotization. A method of improving wines by adding sugar and water to the marc from which the juice has been separated, and fermenting again. The proce may be repeated several times, the different infusions being mixed. Jetit, Canal of (pet-e'). The narrow annular cleft, triangular insection, bounded in front by the zone of Zinn, mesially by the crystalline lens, and behind by the substance of the vitreous body in the eye. See Canal . P.'s Hernia. See Hernia . P.'s Operation, an operation for the relief of strangulated hernia. It consists in a division of the stricture without opening the sac. See Operations, Table of. P., Triangle of. See Triangles,;tit Mai. See Epilepsy . etiveria pet-iv-e' '-re-ah. A genus of phytol acc a ceo us plants, growing in tropical America and Africa. P. all i ace a, ot the West Indies and Guinea, is stimulant, diuretic, sudorific, anodyne, and depurative. P. tetandra, of Brazil, has similar uses. Its tincture has been recommended for external use after baths, and as a local L'nof. stimulant in paralysis. etri's Capsules, Dishes, Plates, or Saucers. Receptacles for cultures in bacteriologic investigation; shallow cylindric covered gla ve els, in which the colonies may be counted without removing the cover. P.'s Sand-filter, a small filter used in the bacteriologic examination of air. A gla tube, 9 centimeters long, j is provided with two portions of sand (previously I through a sieve with meshes 0.25 millimeter wide) each 3 cm. long, and 0.5 cm. apart, little plates The tne portions in position. 67 its contents, the end having been plugged; tube and with cotton, are sterilized in an oven, at C. A rubber stopper, through which pa es a gla tube, is then fitted into one end of the tube, and the apparatus is connected with an aspirator of known capacity.