Abstract
IT is I believe well known that a method of obtaining light by means of incandescent platinum was patented by A. Cruckshanks in 1839. The following extracts from his specification (No. 8141) will, I think, show that there is no essential difference between the lamp devised by Prof. Regnard (NATURE, vol. xxvi. p. 108) and the invention of the patentee, which is described as follows:—
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SEXTON, F. Non-Electric Incandescent Lamps. Nature 26, 176 (1882). https://doi.org/10.1038/026176a0
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DOI: https://doi.org/10.1038/026176a0


