Poynting, J. H. (John Henry), 1852-1914, Shakespear, Gilbert Arden, ed, Barlow, Guy, joint ed · Cambridge, University Press · leaf 479
r the ordinary form of sodium flame was quite unsuitable, owingto the different quantities of light emitted from different parts of the surface,and the altogether uncontrollable fluctuations in brightness. The followingarrangement, represented in Fig. 2, was, however, found successful: A stream of… … Fig. 2. placed at the bottom of the flask, together witS a small quantity of con-centrated salt-solution, with a large excess of solid salt; hydrochloric acidwas added by the thistle funnel, S. The hydrogen slowly evolved from thezinc and acid kept up a constant spirting of salt-solution into the…
Poynting, J. H. (John Henry), 1852-1914 · Physics
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