gum-dammer

Now the absorption of so much labour in the cultivation of this one product must necessarily have raised the price of food and other necessaries; and when it was abolished, more rice would be grown, more sago made, more fish caught, and more tortoise-shell, rattan, gum-dammer, and other valuable products of the seas and the forests would be obtained.

The Malay Archipelago 2004

Now the absorption of so much labour in the cultivation of this one product must necessarily have raised the price of food and other necessaries; and when it was abolished, more rice would be grown, more sago made, more fish caught, and more tortoise-shell, rattan, gum-dammer, and other valuable products of the seas and the forests would be obtained.

The Malay Archipelago, the land of the orang-utan and the bird of paradise; a narrative of travel, with studies of man and nature — Volume 2 Alfred Russel Wallace 1868