1918.] NATUEAL SCIENCES OF PHILADELPHIA. 307 



19. Congden Camp. 



20. Northeastern side Kellogg Peak. 



21. Carnegie Desert Laboratory experiment station, Marshall Pass. 



22. Ridge running down east side Lemon Mountain. 



2.S. Ridge running south from Soldier's Camp towards Mud Springs. 



24. West side of ^larble Peak ridge. 



25. Top of same ridge. 



26. "Quartzite" slide south side of Marble Peak (same as Station 3, 1910; 

 Station 4, 1910, is the top of same slide). 



27. Ridge south of Hinkley Camp. 



28. Marshy spring on Lemon Mountain trail. 



29. Leaning Rock, south side Lemon Mountain. 



60. Aspen Gulch, parallel with main trail to Lemon Moimtain. 31, quarter 

 mile below" 30, where gulch is close to traU. 32, quarter mile farther down. 33, 

 foot of trail at the stream. Little shells very abundant at these stations and the 

 next. 



34. Cold Spring. 



35. Southeast side of Marble Peak, about Apache Camp and "Joliet Cave." 



36. Northwest side Marble Peak near "Old Dan's Cabin." 



37. Westfall'smine. 



38. North side Marble Peak near the Daley mine. 



39. Goodale's house. 



40. Alder Spring, Peck Canyon (one of the head branches of Buehman Can- 

 yon). Alder Spring is about 12 miles east of Soldier's Camp Ranger Station; 

 Brush Corral Ranger Station is about 8 miles farther down Buehman Canyon. 



41. Buehman Canyon: "Quartzite" slide. Sycamore Spring. 



42. Buehman Canyon: Forest Ranger pasture near lower fence, Brush 

 Corral. 



43. Buehman Canyon. Lower on the stream, towards Korn Kobb mine. 



44. Buehman Canyon. Near the mine. 



45. John Lyon's mountain (east of San Pedro River and Rincon Mountains, 

 north of the Little Dragoon Mountains). The rock is granite, and only Thysa- 

 nophora hornii was fovuid. 



Siations of 1917 (J. H. P.). 

 (SaLta Catalina Range.) 



12. iVIain fork of Sabino Creek, at camp in Sabino Basin. 



13. Head of Bear Creek {Gundlachia and Physa). 



14. Head of Bear Canyon. 



15. Northeast corner of Sabino Basin, on trail to Soldier's Camp. Boulder 

 dykes along gulches. 



16. Same as Station 12, in slides of mountain facing north. 



17. Southwest side of Sabino Basin, big movnitain in the "Window Range." 



18. Brush Corral, crossing of Peck Canyon, Alder Springs. 



19. Limestone mountain in foothills of S. Catalinas, San Pedro slope. 



(Rincon Mountains.) 



20. North side of the high Rincon peaks. 



21. Saddle camp, between Santa Catalinas and Rincons. 



22. Ridge west of Spud Rock Ranger Station, in aspens. 



23. Drift debris of San Pedro River above Mammoth. 



(GaUuro Mountains.) 



24. Drift of boulders near southeast gate of the forest reserve pasture. 



25. In slides, creek bank, above .John Rhodes' ranch house. 



26. In slides head of the same gulch as 25. 



27. In No. 4 slope in amphitheatre of the mountains on Whitlow ranch, 

 east of Sombrero Peak. 



28 and 29. Other slides in the same vicinity. 



30. On trail two miles south of Copper Creek mining camps. 



