140 CATALOGUE OF GEOLOGICAL COLLECTIONS. 
CATALOGU E—Continued. 
No. Name. 
316 | Porphyry, (reddish brown,) with scales of mica 
Locality. 
317 | Porphy 
ty 
318 | Obsidian veins and masses in porphyry 
319 | Porphyry 
320 | Porphyry, (pale green, with tufa) 
Saito vdes (greenish yellow) 
do do 
do Camp 55.2 - 2... ose 
322 | Trachytic porphyry 
323 | Amygdaloid trap cavities filled with carb. lime 
Entrance to Black cafion, Camp 57... 
324 | Porphyry Black mountains, Camp 49..-...-.--- 
325 | Red jaspery rock do do 2 
326 | Massive quartz veins in granite Cafion below Virgen river oF 
327 | Amygdaloid trap Black mountains, Camp 55..-.-.---- 
328 | Black basalt Chocolate mountains .....---.------ 
329 | Trachyte, (red and yellow) Black mountains, Camp 49.----..--- 
330 | Tufaceous trachyte, (pure white) do sen 
331 | Porphyry, (dark red, with yellow spots)..........-. do do - 
332 | Trachyte, (lilac, spotted with white) do do 
333 | Trachytic porphyry .......-.. do Cding ST To. 
334 ° do... (deep red) do Camp 49 .---.----- 
335 | Syenite, (dark green do Camp 48 ---....--- 
336. | Trachyte (yellowish gray) with transparent crystals...... 2.222. 22022 22-5 eee |-- eee dotsrsivit Camp 49 ...-..---- 
337 | Porphyry brecciated do do wee 
338 | Trachyte do do wwe 
339 OTi do do Soe 
340 | Porphyry (light blue) with scales of mica....... do do -- 
341 |....do.... (gray) with red and white crystals of feldspar............--. ------ do donate 
342 | Trachyte, (grayish red) Rig io Wakeman 3 apm 4 do ae : 
ieee Prey do.--- (purple) do do caiee 
deed PEEL do... -brecciated, (yellow, with red spots) do dowilsevececes 
345-) Voteanié tam, (white; veined with pale pink) Joo. 0.525co0 soo ooo soo eas d6s222P Lice. dO5S205'. Sacee 
346 | Black scoria ae doen aS 
347 | Porphyry, (dove-colored, veined with red) do deseo tec ccedss 
348 | Trachyte (rose-color) arenaceous do dew AS 
349 | Porphyry, (bluish white) do dove wees 
: enite Black cafion, below mouth of Virgen. 
Black mountains, Camp 49....------ 
| Met Shic conglomerat: as Ce. 2 ot 
353 | "Porphyry, (red and green) do dossiese ate 
354 | Amygdaloid trap, cavities lined with crystals of carb. lime do do..--------- r 
S56:;-Basalt, (Gark Wn fabetiiy Of colenn ss5055 35si5 2 350285 Bass Be doe eee ewes do.-...---Camp 50 ..-------- 
356 | Trachytic porphyry, (green, with white and iin spots) do Camp 49 ---------- 
‘357 | Striped porphyry do dO-.2-----+-- : 
358 | Cellular silicious porphyry a0 wee : 
359 | Porphyry, (pink and white) do eames 6 
360 |....do.... (pale yellow) ...... .... do a siect te 
361 | Tufa, (grayish white) oars iieser eeisoteeetscir reser eee tees Sescriee: Camp 50....------* 
do ‘ Camp 49. eaveos peer 
