Abstract
THE Times of the 15th inst. contained an article on the Pneumatic Despatch, which has never been used to any extent in this country. From that article we learn the following particulars as to the working of this method of conveyance in London:—
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The Atmospheric Telegraph . Nature 9, 64–66 (1873). https://doi.org/10.1038/009064a0
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DOI: https://doi.org/10.1038/009064a0