142 
CATALOGUE—Continued. 
CATALOGUE OF GEOLOGICAL COLLECTIONS. 
No. Name. Locality. 
410 | Porphyry, (mottled,) containing masses of red jasper ....-..--...----. ------ Black mountains, Camp 50.......... 
411 | Obsidian, (pearl stone) Walls of cafion, Camp 57........... 
412 do do (dove color) do . do 
413 | Jasper, (red and yellow) do do 
414 | Dog tooth spar lining cavities in trap do do 
415 | Silicious porphyry, (pink) desc ia Camp 49 cc. 
416 | Tufaceous trachyte, (greenish yellow, enclosing cobalt bloom?) . do woes Camp 48 i225. .1c5 . 
417 | Porphyry G0: cei<'cece ORMEP GEMS. 4. soae 
418 | Trachyte, (green) do i Camp 50 J.c32./c5u0 
413 |.... o...-(red and yellow) do ~ Camp S133 ce = 
420 do.... (cream-colored, veined with red) do Camp 49.08.58 F 
421 |.... do....(dark red, arenaceous) do Camp 57.6 .,-.ce0 
422 |....do....(pinkish yellow) do do 
423 | Trachytic tufa do do 
424 | Gray porphyritic basalt with olivine do - Camp 49cge sen 
425 | Porphyry, (dull red, with white spots) do «-. Camp G4... dees. iz 
426 | Coarse feldspathic granite Mountains west of Camip 57 ....-.... 
427 | Jasper, (yellow and red mottled) Black mountains, Camp 57.........-. 
428 | Porphyry, (rose-colored, veined with VOHOW) nor as i aaeeiell Black cafion above Camp 57....-.... 
429 | Trachytic porphyry Black mountains, Camp 54.......--. 
430 | Tufaceous rock, (white, veined with purple) do Camp 57 .....--<+- 
431 | Granular obsidian in trachyte ._..__._. do do 
432 | Trachyte, eel bluish gray) do Camp 48......0.0- 
433 | Trachyte porp do Cainp §7:iss6 2s . 
cl REE: “Sage ei 0..--With nunierous decomposing crystals of white feld i do Camp 49........+. 
435 | Trachyte, with large cavities set with crystals of quartz ---| Walls of Black caiion, Camp 57...... 
436 | Silicious porphyry, (dark purple) Black mountains, Camp 57......---- 
437 Trachyte, (w hite) do do 
438 | Jasper, (yellow) do Camp 64i5... 50658 
439 | Basaltic trap overlying Tertiary sandstones do Camp 57 s.ce.- <tes 
440 | Porphyry, (purple,) with crystals of red feldspar do Camp G4uc0 cies 
441 | Silicious brecciated porphyry, (base liver color, with red and white spots) do Camp 49........ - 
442 ) Porphyry, (brown, speckled with white) do Camp 54.......++ * 
443 | Red syenite, containing specular iron._....____ Cafion below mouth of Rio Virgen.... 
444 Porphyry, (purplish gray, ) with scales of mica__... Black mountains, Camp 48...-.. -.- : 
445 porphyry, base yellowish red, with angular fragments of quartz....|...-..do......-+ Camp 54.....----- 
446 | do Camp 57..n0siecoeus 
447 -| Porphyry, (white and crimson clouded) SoS do do 
448 | Feldspathic tufa, (white) --....._..__ Walls of cafion, Camp 57....--. erees 
449 | Porphyry, (dark red, with circular cream-colored spots) .. Black mountains, Camp 57..-.-- -.-- 
450 | Syenite, (very compact and fine grained) Walls of cajjon below Virgen ....-.-- 
‘451 | Feldspathic granite............ eee an do go 
452 | Amygdaloid trap, (porphyritic) Black mountains, Camp 54.-..-- --+« 
4 do do ee do Camp 55..-0c- ---s 
do — do Camp 54.....----+ 
a ae do Camp 55......---- 
ao. do. Canis Bi. csaduoee 
--d0.. do do a 
