Author: WATSON & SONS (Electro-Medical) LTD
Title: Artificial Sunlight Apparatus (Bulletin No. 94)
Description: London, Watsons c.1927 48pp, bw illustrations throughout 25x17, stapled illustrated card wraps Staples rusted, wraps worn and creased, one page creased, a few pencil lines in margins, fair thus. Health promoting infra-red lamps and the like, with technical-medical discussion of the use and benefits of the various bits of apparatus. Watsons had started trading in 1839, but the separate electro-medical division evolved as a distinct company by the early 1920s. This catalogue confirms that it was working in partnership with GEC's X-Ray Division, and by the end of the 1930s GEC had taken ownership.

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