IGNEOUS AND CRYSTALLINE ROCKS. 179 
E. Melilite-nephelite basalt, Kild4uea Landing, North coast of Kauai. Uvaidose. 
Consists essentially of augite, olivine, melilite, nephelite, magnetite, and apatite, 
with a little analcite. In vesicles, also, an undetermined fibrous zeolite. 
F. Portion of E soluble in 1:40 nitric acid. 
A B Cc D. E F 
SiOg. 62.19 | 49.55 45.48 | 37.50 15. 84 
Al;O3 17. 43 | 17.78 11. 87 9.12 68 
Fe,03 1.65 | 4.65 1.98 5.59 1.47 
FeO.. 2.64] 5.89 9. 87 8. 81 47 
MRO aicisrctnsrrsatats side asic Buss nietetsictes SeieEoemuied sain areenteas inoaeade os 40} 2.49 13.28 | 13.72 3.39 
CaO... 86} 7.01 10.97 | 13.85 5.21 
Na3O. 8.28 | 6.12 2.21 2. 69 2.28 
(0 ee 5.03 | 2.29 ete - 63 60 
H20 at 105°. ........ 14 -29 +23 1.05 61.05 
H20 above 105°....... 39 34 74 2.35 | 52.35 
EP OF orececciasajcremtngnets hz news sisi suusedisialeameerinnie tenenmene|gedes tae 37 | 2.09 1.90 3.21 05 
ZrO2 04 01 none MOD | sroaees 
CO2 02 | none none BPA 27 
P20: 14| 1.10 : -90 90 
Cl. undet. (?) (?) +05 03 
Bios sett) MONG een vc crane ate PLACE | 5. 04x0.0's 
Cr2Q3......- where Ste mieecngmanasis|ietes epee trace | none - 08 -07 a 
NiO (CoO). sete 2 ose wiseeeedermnt sie atey sate none | none 04 .04 ? 
MnO....... oe Soha eins thes PoC ceseet Seales ees - 32 +28 -16 -15 |inAlaOz 
BaO....... sisige Sipialshdpaiotetaccactainrajernoisuseeyars ie el |eias Sie s - 03 - 05 04 07 | = (?) 
OF Ogio sssinisiaaye siciseaciaulstuemteisisisiersiornive mene hoteniced eas baeeaaoe none -08 | trace? 05 | inCaO 
Aig Ol ee acicuisan Styne Gueienins ab anatatss eckolasercel laeaeced trace | none none | trace cag 
Vi Osu cnssaviansn ta newiitedmsa seca stemetenes sarereescacabasaeeee none 015 04 3 
BOSgs ssisccsisser vind civecamem ease xicsiosasmsemeessies eens s|aacesecilesseeaas 03 03) |ascisiersicr is 
99.24 | 99.93 |100.065 | 99.94 | 100.19 41.59 
a Loss on ignition. > Assumed. 
GUATEMALA. 
Volcanic dust from the volcano Santa Maria, collected on deck of steamer Luxor, 
60 miles distant in San Benito Harbor, October 25, 1902. Yellowstonose. Analysis 
by E. T. Allen, record No. 2011. 
SiO... 36 
AlzO3-. 73 
Fe203.. 49 
-18 
«oT 
100. 33 
Traces of Cr203, MnO, and BaO are present. COs is absent. 
WEST INDIES. 
Volcanic ejectamenta from Mont Pelée, Martinique, and La Soufriére, St. Vincent, 
eruptions of May, 1902. See Diller, Nat. Geog. Mag., vol. 13, p. 285. Also Diller 
and Steiger, Science, vol. 15, p. 947. 
A. Pumice, Mont Pelée, eruption of May 8. Bandose-tonalose. Hypersthene 
andesite, containing plagioclase, hypersthene, and magnetite in a vesicular, glassy 
groundmass. : 
B. Sand, same eruption as A, collected on deck of the steamer Roddam after its 
arrival at Santa Lucia. Tonalose-bandose. 
C. Dust, Mont Pelée, eruption of May 20. Tonalose. Collected on deck of 
steamer Potomac in harbor at Fort de France. B and © resemble A mineralogically. 
D. Volcanic dust from about 1 mile north of Georgetown, St. Vincent. Bandose. 
Collected by E, 0, Hovey and not described in the articles cited above. 
