Abstract
THE progress, of knowledge and of skill in its application is often so gradual that although there may be a vast difference between the condition of affairs a few years ago and at the present time, it may be impossible to discover definite steps in the general forward movement. And after a few specific cases of undoubted progress have been singled out, it may be that they, or some of them, will subsequently prove to be only side issues of comparatively trivial importance. On the other hand, a circumstance that is quite obvious to the scientific student may be worked upon by a commercial firm and so advertised that a method of work becomes largely modified, and a practical advance effected without any addition to our knowledge.
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J., C. Recent Progress in Photography . Nature 61, 416–417 (1900). https://doi.org/10.1038/061416a0
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DOI: https://doi.org/10.1038/061416a0