Abstract
II. IN my former article I referred to the possible employment of slitless spectroscopes during the coming eclipse, the prism being replaced by a grating in some cases. It will be convenient here to give the results arrived at by the Siam Expedition with an instrument of this description, which, for shortness, was called a prismatic camera.
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LOCKYER, J. The Coming Total Solar Eclipse 1 . Nature 17, 501–503 (1878). https://doi.org/10.1038/017501a0
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DOI: https://doi.org/10.1038/017501a0