Catalogue of surgical instruments. Arnold and Sons, 1885

Gas and Aether Inhaler (Closeman's), Fig. 974. India-rubber Face-piece (Barht's), Fig. 975. Nitrous Oxide Bag (Arnold and Sons'), Fig. 976. Patent Economizing Inhaler and Gasholder (Edward's), complete, Fig. 977. Page 332. Catalogue of surgical instruments. Arnold and Sons, London, 1885.