The birch bark I had tucked out of sight in my pocket.

Another woman made a basket of birch bark in the same way.

Whole villages were blown up by mines of powder in birch bark.

The Indian houses were long huts covered with strips of birch bark.

And you others fill your pockets with birch bark and spruce pitch-knots.

Our birch bark was not finished and christened till we reached Moxie.

More practically, birch bark was once frequently used as writing paper.

A birch bark canoe, in other words, is worth what it will bring.

They gathered birch bark and dry pine and soon had a fire going.

As they were leaving I took a piece of birch bark.

With a handful of finely shredded birch bark he was now quite ready.

Every native used a porringer or vessel made of birch bark.

For paper he was obliged at first to use birch bark.

That birch bark could talk, as he expressed it, was a mystery indeed.

Fill the platform with dry, quick-burning materials such as birch bark.

I cook pieces of birch bark and wash off her wounds.