Spray-in′stru-ment.
（Surgical.) One for the administration of an anaesthetic or refrigerant in a finely divided liquid form. See Atomiz-Er, page 183; ANAeS-Thetic apparatus, pages 92, 93; foot-bellows, Fig. 2062. Fig. 5472 is an instrument for the eustachian canal. Dr. Richardson, an English physician, introduced ether spray as an anaesthetic. He has lately made some remarkable statements in regard to nitrate of amyl as a remedial agent. It causes extreme relaxation, first of the blood-vessels, and afterward of the muscular fibers of the body, being useful in cases of spasmodic diseases, including tetanus and spasms produced by strychnia and in angina pectoris. It is deemed possible that hydrophobia may be brought under the range of successful treatment. See also Fig. 1814.
