gum tragacanth

noun

1. tragacanth.

Word History and Origins

Origin of gum tragacanth¹

First recorded in 1565–75

Example Sentences

For attaching it to the paper a strong mucilage of gum tragacanth, containing an eighth of its weight of spirit of wine, answers best.

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The majority of plant specimens are most suitably fastened on paper by a mixture of equal parts of gum tragacanth and gum arabic made into a thick paste with water.

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Large surfaces left plain are also washed with gum tragacanth, because this sizing leaves no lines behind.

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Mounting on Points.—Most insects which are too small to be pinned on a No. 2 pin may be fastened to cardboard by means of gum tragacanth, gum shellac, or any good glue.

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A drop of corrosive sublimate added to the water in which the gum tragacanth is dissolved will indefinitely prevent its souring, but should not be used where the gum is to come in contact with the pin, as it inclines the latter to verdigris.

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