Mouth Props, Inhalers and Respirators

Mouth Prop (McAdam's), Fig. 978. Mouth Prop (Hutchinson's), 3 sizes, Fig. 979. Naso-oral Inhaling Respirator, for the treatment of Pulmonary Diseases (Hunter Mackenzie's), Fig. 980. Page 333. Catalogue of surgical instruments. Arnold and Sons, London, 1885.