Construction of macadamised roads bound with tarry, bituminous or asphaltic materials. Report by Arthur H. Blanchard,... [Bituminous surfaces and bituminous pavements constructed by the mixing methods.] Maj. W. W. Crosby,... [the penetration of grouting method] Prevost-Hubbard, — Prévost Hubbard, Arthur H. Blanchard, Walter Wilson Crosby