Several distinct absorption features, some recognized for the first time, are evident in a newly obtained reflectance spectrum (λλ=0.62-2.6μm, λ/-λ=83) of the integral disc of Mars. The effects of Martian atmospheric CO2 have been removed from the spectrum to arrive at a reflectance spectrum that we believe is due mostly to surface material. Absorptions, at 1.22, 1.55, and 2.05 μm are interpreted to indicate the present of H20 ice plus highly descicated mineral hydrate, although an H20 ice phase with strongly shifted fundamental frequencies cannot be ruled out. Ferrosilicate and ferric oxide bands near and shortward of 1.0 μm are confirmed. The new observations are made on April 21-23, 1976, universal time, at the 2.24-m telescope on Mauna Kea, Hawaii, using a newly developed infrared spectromete