barkstone

This was the use of a substance generally called barkstone, which they found to be of great help to them in the capture of that animal.

The Last of the Chiefs A Story of the Great Sioux War 1890

The barkstone or castoreum, as it is commercially known, was obtained principally from the beaver himself.

The Last of the Chiefs A Story of the Great Sioux War 1890

This substance formed the main ingredient of barkstone, and in their medicine chest they found a part of the remainder.

The Last of the Chiefs A Story of the Great Sioux War 1890

He hurried back to Castle Howard and brought one of the bottles of whisky, a little store that they had never touched except in the compounding of the barkstone for the capture of beaver.

The Last of the Chiefs A Story of the Great Sioux War 1890

They put eight or ten drops of the barkstone upon the bait for the beaver, or somewhere near the trap, and, despite some defects in the composition, it proved an extraordinary success.

The Last of the Chiefs A Story of the Great Sioux War 1890

The body of the beaver contains a curious odoriferous substance, called by the trappers barkstone, but more scientifically "castor," or

The Western World Picturesque Sketches of Nature and Natural History in North and South America William Henry Giles Kingston 1847