‘Wellcome’ Brand Chloroform is the result of prolonged laboratory experiment and careful clinical observation. Its reception by the profession verifies the theory upon which its production is based. It has been largely used in hospital and in private practice, and with gratifying results. Reports from most experienced anæsthetists agree in regarding ‘Wellcome’ Brand Chloroform as a distinct advance. Its constancy in composition gives confidence in administration, and its freedom from irritating and depressant principles removes the source of many of the accidents which have hitherto been regarded as grave objections to the employment of chloroform as an anæsthetic. ‘Wellcome’ Brand Chloroform is issued in 2 oz., 1/4 lb., 1/2 lb. and 1 lb. amber-coloured bottles; also in 30 c.c. and 60 c.c. hermetically-sealed tubes, as illustrated on the previous page. ‘WELLCOME’ BRAND ETHER ‘Wellcome’ Brand Ether is prepared specially for anæsthesia and is thoroughly pure and reliable. When the administration of ether is desired, this product will be found eminently suitable. [Sidenote: Ideal packing] The method of packing in hermetically-sealed tubes is especially desirable with such a volatile substance as ether, and the shape of the glass tube admits of the contents being readily transferred to the graduated bottles usually employed. [Sidenote: Conforms to B.P.] ‘Wellcome’ Brand Ether conforms to the requirements of the British Pharmacopœia for _Æther Purificatus_, and has a specific gravity of 0·720. ‘Wellcome’ Brand Ether is issued in hermetically-sealed tubes containing 30 c.c. and 60 c.c., similar to the Chloroform packing illustrated on the previous page. The anæsthetics issued under the ‘Wellcome’ Brand denote the highest degree of perfection and purity. ‘WELLCOME’ BRAND PRODUCTS It is well known that considerable variation exists in the quality and activity of the medicinal chemicals of commerce. [Sidenote: The need for reliable Medicinal Chemicals] Purity and reliability are matters of the utmost importance to prescriber, dispenser and patient alike, and every opportunity should therefore be taken to ensure the supply of only those chemicals and galenicals which are known to be thoroughly pure and trustworthy. In order that goods answering to this description in the highest sense may be at the disposal of the profession, Burroughs Wellcome & Co. manufacture and issue a series of fine chemicals, alkaloids, etc., to which they have recently added a series of standardised liquid and granular extracts and concentrated tinctures, under the distinctive title of the ‘Wellcome’ Brand. [Sidenote: Standardised galenicals] [Sidenote: Physiological standards]