Betula alnus, i. [67]. ii. [90].
—— lenta, i. [69].
—— nana (pumila, Linn.) i. [138].
Bidens bipinnata, i. [171].
Bill of mortality for Philadelphia, i. [57].
Blatta Orientalis, ii. [13], [14].
Blubbers, i. [15].
Blue-bills. See Anas acuta.
Blue-bird, ii. [70].
Boats used in Canada, iii. [15].