Abstract
WHEN paper labels are used for describing the contents of a bottle containing animals, especially those obtained on expeditions and not examined until many years after the material is preserved, it is not infrequently difficult to read the labels with certainty. Valuable material is sometimes lost from this cause. Moreover, the writing of paper labels out-of-doors in wet weather under pressure of time and material is irksome and inefficient. No doubt there are many ways of overcoming a minor difficulty of this kind, but it is probably not superfluous to record a successful method which may not be known generally and has been extended in this laboratory to more valuable uses. A satisfactory label can be made of pieces of opal glass of a suitable size and thickness. Opal glass sheets or slips can be obtained easily commercially with one side polished and the other rough and unpolished. There is no difficulty in writing with a graphite pencil on the unpolished surface, and the writing is permanent in ordinary preservatives and fixatives.
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ORTON, J. Imperishable Labels for Preserved Organisms. Nature 122, 57 (1928). https://doi.org/10.1038/122057b0
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DOI: https://doi.org/10.1038/122057b0
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