An admixture containing natural gum of course behaved better than when no such gum is present.

Silk is covered with a natural gum which has to be removed before the dyeing process can begin.

The viscosity of a dextrin or artificial gum is determined in exactly the same way as a natural gum, using 10 per cent.

We find that in resisting such influences any natural gum is better than a dextrin or a gum substitute containing dextrin or gelatin.