Hay

Gra , cut and dried. H.-asthma. See Fever ; Hay. H.-cold. Same as Hay-fever. H. -fever. See Fever . Hay's Method. See Treatment , Methods of. H.'s Reaction. See Stra burg's Test , in Tests, Table of H.'s Test. See Tests, Table of Haya Poison (ha'-yah). A powerful toxic agent from tropical Africa, by some to be derived from some species of erythrophleum; but this has been disputed. A solution of its impure alkaloid is a powerful local anesthetic, more persistent in its effects than cocain.