Abstract
THE instrument designed by Prof. Forbes is intended only for use with rifle fire. It is not suitable for long-range artillery, or for the Navy. This infantry type is by far the most difficult to produce, because, in addition to accuracy, extreme portability is an essential feature. At the same time, the infantry are more in need of some addition to their present resources than any one else, and the urgent need of such an instrument has been proclaimed and re-echoed by all our officers who have returned from the war in South Africa.
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A New Range-Finder 1 . Nature 65, 261 (1902). https://doi.org/10.1038/065261a0
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DOI: https://doi.org/10.1038/065261a0