1913 (March - July)
Palmetto and Pine, March 13, 1913
Maxima Point, March 13, 2013
Maxima Point, March 13, 2013
Maxima Point, March 13, 2013
Maxima Point, March 13, 2013
Palmetto and Pine, March 13, 2013
Pine and oak, March 14, 1913
Shrub, March 14, 1913
Shrub, March 14, 1913
Turpentine pine and oak, March 14, 1913
Pine and scrub oak, March 14, 1913
Carnegiea gigantea, March 20, 1913
Carnegiea gigantea, March 20, 1913
Carnegiea gigantea, March 20, 1913
Covillea (pure), March 20, 1913
Corvillea, March 20, 1913
Loose sheath opuntia, March 20, 1913
Atriplex, opuntia, March 20, 1913
Opuntia, March 20, 1913
Thorny opuntia, March 20, 1913
Corvillea, March 20, 1913
Corvillea, March 20, 1913
Mesquite and misletoe, March 21, 1913
Succession on sand - Panorama, July 2, 1913
Native no. of station, July 6, 1913
Native no. of station, July 6, 1913
Panorama NW of Akron, July 6, 1913
Bunch grass SW of Yuma, July 7, 1913
West - Panorama, July 9, 1913
Succession on sand - Panorama, July 21, 1913
Succession on sand - Panorama, July 21, 1913
Instruments, July 26, 1913