DCHP-1 Online
Indian pitch Fur Trade, Obs. 
n. a resinous substance exuded from certain evergreen trees, especially the spruce, as used for waterproofing the seams of birchbark canoes.
See also: birchbark canoe gum ((n.)) (def. 1)
- 1785 (1954) The craft were obliged to be tarred all over for want of paint Oil which has quite exhausted our pitch and Tar notwithstanding I got near 1 Cwt. of Indian pitch from the Natives to eke it out with.
- 1785 (1954) The craft were obliged to be tarred all over for want of paint Oil which has quite exhausted our pitch and Tar notwithstanding I got near 1 Cwt. of Indian pitch from the Natives to eke it out with.