IGNEOUS AND CRYSTALLINE ROCKS. 167 
B. Olivine separated from A. Analyses A, B, by F. W. Clarke, record Nos. 811, 
814. 
©. Dacite porphyry, sec. 5, T. 30S., R. 6 W. 
D. Granodiorite, sec. 26, T. 308., R. 3 W. 
E. Intermediate rock, between greenstone and granodiorite, Evans Creek, near 
mouth of Sykes Creek. 
F. Augite andesite, south bank Umpqua River, ? mile west of Days Creek. 
Rocks C to F collected by G. F. Kay. Analyses by G. Steiger, record No. 2354. 
99.80 | 99.36} 99.97 | 100.17 | 99.77} 100.01 
@ Loss on ignition. 
The four following rocks were also collected by Kay. Analyses by Steiger, record 
No. 2349: 
G. Diabasic greenstone, Sec. 2, T. 30S., R. 6 W. 
H. Basaltic greenstone, Sec. 23, T. 31S., R. 6 W. 
I. Gabbroic greenstone, Sec. 2, T. 348., R. 6 W. 
J. Dioritic greenstone, Sec. 29, T. 348., R. 6 W. 
. 
G H. I J 
SL Sache teac sn nS sss shea Seb 2c ncnce aco SecpegseraUSe Scheele gs auceenpeESyoNS 50.90 | 52.58 | 45.86 46. 36 
Alls Oe: crdardadAudncdleka tinsel oleae dendtdudadavsmcated Mijetatetedabeieed 18 16.71 15.58 | 15.52 16. 88 
W633 are serie teens ays Sie Bam NAR ERS aie wie ame mies eemiemuarnd ZO - 40 2.07 1.84 2. 23 
Be Osa icrntssoceisys easrcectomnstze ata cic miae weenie miainlaras SiatreeCaTewaltiemeRaNs oF 8. 50 6. 68 3. 22 6, 29 
MEO) repesmsctcczsecers sisal acctctayees cis! sriithe Sa mametaie Sreeercictng eats erm are ees ataeermervNRRE ae 5.14 5.75 | 11.71 8.15 
CAO vecatossstrcte saroepcieieiets startet aicoem sg S ERENT i uateeic eae tee eeiMnEnIS S 9.74] 10.37 | 15.57 15. 66 
NAO sewecauee sieecoisis cee ee aeieiese a eet week mid SE ore Pee Rae ORE 3. 50 1.79 - 86 1.17 
K20.25.--- i i es is sig ua Saas Speech ws Sr - 60 . 82 -12 10 
FAO Bt M05 oa ccissais cies varanesis sare pe pisrensigiays 4cieee creed & HaialGleisiS aes axciondatiisiasiags ince 03 22 1.38 721 
HaQsabove 105%... 4 nsa-camsindaticopacgned odatananecceiaesmsicwdedslien sts 2.12 3.13 3.70 1. 48 
EDO gs sis cxraicintasnciaia easeciz cata pany SENSE SLAG AE PERIEAES 27 RE ROAR REE ORE 1.80 89 . 22 1.29 
OB aware dianaissacsinie. spare Srabenabiatas aia ieranesacevaia > waiesauanchareneais Saiatamininietcha Elem ROMGIRLE & ie 51 -22| none none 
PAO ie cca. cueyets stark xectaraceteycaa a orstecers elaverotsyaresrayepetere esate cia ote mvatecare Istagtgvetetctacstods aiava 07 -09 | none trace 
wouy dmsievat taye's sale peemeGiee ee eyota re SEE eee Ee EE eecwehe SEER CERES YS none | none 06 01 
MO 90 cee ass cdo wine Antica stew eek ee seeee WEE RE EENE a ReeES een tet 13 «15 07 10 
BBO is ce: zp2sc'sjerepsicisces oie eid cjeseicin dase dsc pare sib Bisse aja eC TSS EISIE iResmiesae GR BIASHC MERE ERIS 02 -03 | none none 
ST Osc bak hed vei ib etarsa be talon cre diaralacadntio Dajatenasin dinaloieinrcanais bets eieaaraisieje ee trace | trace | none none 
100.17 | 100.37 | 100. 13 99. 93 
ZrOz absent. 
