Lophocereus schottii, flower fruit, May 8, 1932
Desert veg., May 8, 1932
Desert vegetation named, May 8, 1932
Desert veg. mts. In back, May 8, 1932
Boring larva, May 8, 1932
Boring larva, Cereus pringlei, May 8, 1932
General view over desert, May 8, 1932
View over desert - Panorama, vegetation named, Mts. in back, May 8, 1932
Panorama of desert veg., May 8, 1932
Lophocereus schottii, May 8, 1932
Cereus giganteus, horned owl, May 8, 1932
Lemairocereus thurberi, detail, May 8, 1932
Branch of Lemairocereus thurberi, detail, May 8, 1932
Detail of Lemairocereus thurberi, detail, May 8, 1932
Detail of flower, May 8, 1932
Young fruit of Lemauriocereus thurberi, May 8, 1932
Scene below dam, June 4, 1932
Yucca, Covillea, desert veg., June 4, 1932
Panorama of Roosevelt Dam, June 4, 1932
View of desert veg., June 4, 1932
General view of Dam, June 4, 1932
View of Dam, June 4, 1932
Camp, June 5, 1932
General of veg., June 5, 1932
Road and veg., June 5, 1932
Apache Indian hogan, June 5, 1932
Apache Indians, June 5, 1932
Apache hogan, June 5, 1932
Detail of parasite on pine tree, June 5, 1932
Yellow Pine forest, oak, fern, June 5, 1932
Trail with yellow pine, June 5, 1932
General, yellow pine forest, June 5, 1932
Detail young fruits, June 12, 1932
Cereus giganteus in flower, June 12, 1932
Cactus forest, June 12, 1932
Detail Cereus giganteus, June 12, 1932
Flowering tip of Cereus giganteus, June 12, 1932
Cereus giganteus, June 12, 1932
Cereus greggii, June 12, 1932
Cereus greggii in U. Cactus garden, June 14, 1932
Cereus greggii, June 14, 1932
Cereus greggii, univ. cactus garden, June 14, 1932
General view of Cactus garden, June 15, 1932
Cereus greggii, June 15, 1932
Cereus giganteus, July 7, 1932
Cereus giganteus fruit, July 7, 1932
Olives, July 7, 1932
Cereus greggii, July 7, 1932
Presidents Residence, July 7, 1932
Law College, July 7, 1932
Campus, Gym, July 7, 1932
Mexican Garden, July 7, 1932
Detail of Mexican garden, July 7, 1932
Detail of campus, Hilaria, etc., July 7, 1932
From baseball, cactus garden, July 7, 1932
Yucca, July 7, 1932
Agric. College, July 7, 1932
Sand hills, July 30, 1932
Detail Eriogonum, July 30, 1932
Plank road, July 30, 1932
Ben and Janet, July 30, 1932
Populus termuloides forest, August 15, 1932
Detail of bark of Populus, August 15, 1932
Aspen forest, August 15, 1932
Populus termuloides forest, August 14, 1932
Populus tremuloides, August 15, 1932
Cedar breaks, August 16, 1932
[Picea] Engelmannii, Penstemon, etc., August 16, 1932
Bryce, August 17, 1932
Clouds above Bryce, August 17, 1932
Navaho corn, August 17, 1932
Navaho corn field, August 17, 1932
Engelmann spruce, trimmed by deer, August 19, 1932
Opuntia chlorotica, August 23, 1932
Opuntia Bigelovii, August 23, 1932
Opuntia vivipara, August 23, 1932
Detail Opuntia vivipara, August 23, 1932
Opuntia spinosior, August 23, 1932
Cereus giganteus, August 23, 1932
Opuntia phaecantha, August 23, 1932
Opuntia versicolor, August 23, 1932
Opuntia mammillata, August 23, 1932
Echinomastus erectocentrus, August 24, 1932
Echinomastus horizonthelonius, August 24, 1932
Coryphantha robustispina, August 24, 1932
Cereus giganteus, August 24, 1932
Ferocactus Covillei, August 24, 1932
Neomammillaria fasciculata, August 24, 1932
Mammillaria fasciculata, August 24, 1932
Opuntia macrocentra, August 24, 1932
Ferocactus wislizeni, August 24, 1932
Opuntia Santa Rita, August 24, 1932
Opuntia delicata, August 24, 1932
Coryphantha recurvata, August 24, 1932
Echinocereus engelmannii, August 24, 1932
Opuntia basilaris, August 24, 1932
Opuntia laevis, August 25, 1932
Carnegiea gigantea, August 26, 1932
Detail of Carnegiea gigantea with bark, August 26, 1932
Ferocactus wislizeni, August 26, 1932
Fouquiria and Underwood, August 26, 1932
Opuntia leptocaulis, August 26, 1932
Opuntia Engelmannii, August 26, 1932
Fouquieria and Shantz, August 26, 1932
Veg. of cactus garden, August 26, 1932
Opuntia versicolor, August 26, 1932
Opuntia versicolor, August 27, 1932
Opuntia spinosior, August 27, 1932
Opuntia phaeacantha, August 27, 1932
Opuntia Engelmannii, August 27, 1932
Opuntia mammilata, August 27, 1932
Opuntia arbuscula, August 27, 1932
Cactus forest, August 27, 1932
Idria columnaris, December 1, 1932
Idria, December 1, 1932
Grapefruit, December 1, 1932