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She was greeted by the beautiful display: clear jars and magnificent flasks contained oils, balsams, and waxes.

Walcott studied the fossils by cutting them into sections of paper-thin slices of rock and attaching them to glass slides using balsam sap.

But on the Isle Royale National Park near Michigan’s border with Canada, balsam firs were being devoured.

“I thought they were real — it said the wreaths had something like 200 balsam tips,” he said.

Surround them with the woodsy scent of fir balsam, cedar, juniper, sap and pine needle and damp moss in these charcoal incense cones in a black tin.