IV ILLUSTRATIONS 
Sueret 21. Holt to Chamiso, 7 haya line), and Silver Creek to San 
Juan, Ariz. (sout 
22. Mescal to Wymola, ner 
23. Ocatilla to Norton (north line) and Estrella, Ariz. (south line) _ 
24. Liberty to Athel, Ariz. (new line), and Shawmut to Aztec, Ariz. 
(old line 
25. Horn (new line) and eee (old line) to Fortuna, Ariz_______ 
26. Araby, Ariz., to Niland, C 
27. Mundo to Carnes Calif 
28. Hugo to Colton, Calif 
29. Colton to Los Angeles, Calif Bic 
PuaTE 1. Map showing precipitation in the Southwest___.____________- 
lief map showing larger features of the Southwest and the 
location of areas covered by sheets 1 to 29 
3. A, Old French market in Vieux Carré, New Orleans; B, Typical 
graveyard in New Orleans 
4. A, Woodland scene, south-central Louisiana; B, Salt mining, 
Avery Island, La 
5. A, Oil field near Jennings, La.; B, Galveston, 
6. A, Cotton ready for shipment, Galveston’ Nel: B, Block of 
sulphur at New Gulf, T 
FA, — Alamo, San hekiuin Tex.; B, Palace of Spanish gov- 
rnor, San Antonio, Tex 
8A, anetii chalk, San — Tex.; B, Quaternary and Eocene 
deposits, San Antonio, T 
9. A, Armadillos in central Seek B, Fault in Buda limestone 
northwest of Bonds Tex.; C, Columnar structure in basalt 
near Knippa, T 
10. A, Asphalt aides pon ab of Cline, Tex.; B, oe Ford and 
Buda contact northwest of Hacienda siding. 7 
11. A, Anacacho limestone north of Hondo, Tex, * B Del Rio clay 
Recesses and 
capped by Buda limestone, Comstock, Tex. Gad 
buttresses, Castle Canyon, west of Del Rio, T 
12. A, Bridge over canyon of Pecos River, Tex.; B, Miskin cattle_ 
13. A, Comanche limestone on tilted Pennsylvanianstrata, Tesnus, 
rae B, Sinuous ridges of esi beds in Marathon Basin, Tex.; 
C, Mitre Peak, near Alpine, T 
14. A, Lava mee tuff of Davis Mountains west of Alpine, Tex.; 
ass, Davis Mountains, T spa se 
16. A, Finback lizards of Permian time; B, Carlsbad Caverns, 
ex 
17. A, Badlands in lake beds; B, Overturned syncline of Malone 
Mo i 
untains, Tex 
18. A, Smelter at El Paso, Tex.; B, Kilbourne Hole, a crater west 
of El x 
19. — — of lava west of El Paso, Tex.; B, Restoration of giant 
ye ie a, of the desert”; ‘'B Water from the biznaga_------- 
21. Mission of San Xavier de Bac, near Tucson, Ariz 
Ariz 
23. A, Rattlesnake, common in the = sete B, Gila monster_-_ 
24. A, Casa Grande, Ariz.; B, Typical Pima home_.__._._______ 
