Peary, R. E., [106]

Perez-Llano, George A., [98]

Perisoreus canadensis canadensis, [68]

Picea mariana, [33] (fig.), [92] (fig.)

Pike, Warburton, [9], [44]

Planchek?, Charles, [52]

Pocock, R. I., [112]

Poole, Earl L., cover

Porsild, A. E., [73], [76], [77]

Preble, Edward A., [7], [9], [12], [40], [96]