1923] NATURAL SCIENCES OF PHILADELPHIA 57 
216. North slope of same peak in slide of white porphyry. 
(Same slide as Station 207, but higher.) 
217. South side same ridge. 
218. Half a mile south of the above. 
219. Near the preceding. 
220. Pajaritos Range: Calabasas canyon, Garcia National 
Forest, about a mile above Oro Blanco road. 
221. A short distance further up canyon on west side. 
222. Larger slides near 221. 
223. Pina Blanca canyon 14 mile above Oro Blanco road, slide on 
east bank. 
224-229. Successively further up the stream. 
230. Same vicinity as 229. 
231. Quarter mile east of Cassin’s gate on Oro Blanco road, in 
the Tumacdcori Mts. 
232. Montana Peak. 
233. Montana mine reservoir (Physa). 
234. Tumacacori Mts., 5 miles north of Pina Blanca, in a small 
canyon running east and west, opposite main gulch from Tumacé- 
cori Mts. (living Bulimulus in slide). 
235. Large slide, same hill. 
236. Slide 44 mile below camp in Pina Blanca. 
238. Bear canyon, Pajaritos Mts., mile below Oro Blanco road. 
239. Cassin’s reservoir (Physa). 
240. Opposite 236. 
241. Creek 2 miles north of Nogales-Tucson road (Physa). 
242. Northwest branch of Pina Blanca canyon. 
243. Southern peak of San Cayetano Mts., 2 miles above 
Calabasas, west bank of Sonoita Creek. 
244. South side of a small knob, in porphyry. 
245. Further north. Albino Sonorella in this and the preceding 
colonies. 
246. Further north. 
247. The furthest south of the larger peaks. 
248. Near 247. . 
249. Edge of the mountain. Stations 248-249 are on the south 
side of the Cayetano Range. 
250. Northwest slope of mountain, in mass of loose rock about 
40 acres in extent. This station is about 2 miles from Station 217, 
both well over towards the west side of the 8S. Cayetano Range. 
251. Small hill east side of Sonoita Creek. 
(252—264. Patagonia Mountains.) 
252. West side of Mt. Washington, Patagonia Mts., in hills 
west of main canyon and of the road to Duquesne. 
253. Boulder island of the main canyon running west on Mt. 
Washington; about 4500 ft. 
254. Half mile above, among boulders. 
