An extension of the infrared survey of MS and later stars in the Milky Way is given The previous survey was confined to a zone 4 deg wide centered at the galactic equator. The present investigation extends it to a zone 12 deg wide. In the new areas surveyed, the surface distribution of 4953 stars of type MS or later shows a gradual diminution in their number as the anticenter of the Galaxy is approached A similar distribution was obtained for the 941 stars of class M7 and later. The average number of late M stars per square degree in the zone 12 wide is 2.9. In the direction of the anticenter the corresponding number is 1.5. A catalogue of all the late M-type BD stars is given.