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E (Stack)Browning, John
How to Work with the Spectroscope: A Handbook giving practical elementary instructions in the use of all kinds of Spectroscopes
Fourth edition, entirely re-written and revised. London: John Browning, Manufacturing Optician To His Majesty's Government, etc., n.d. [c.1920]. Together with an untitled, separately paginated catalogue of John Browning spectroscopy apparatus, 12 pages, glued in at the end. Transferred to Bodleian, September 2017.
[1969-158]
1920?