MINERALS. 301 
ULEXITE. 
From Rhodes Marsh, Esmeralda County, Nevada. Analysis by J. E. Whitfield, 
with description in Bull. 55. 
43220. I) SOgsee se eecins Hortoeeeees seeeeaveims eeeeRees 28 
14,152) iCle naacd ate nek cemdeatere meneame eee ea wer 2. 38 
10, - 100. 52 
29. 46 O equivalent to Cl.........-..-.2.0--22--00-- - 53 
04 99. 99 
LUDWIGITE. 
A. From Morawitza, Banat, Hungary. Analysis by J. E. Whitfield, with descrip- 
tion in Bull. 55. | 
B. Same locality as A. Analysis by W. T. Schaller. 
C. From Phillipsburg, Montana. Contents some admixed olivine. Analysis by 
Schaller. 
A B. Cc. 
Sie. 36 8. 85 
B203. 217.02 18. 48 
AGO § . seiqsniecricrens sed xGrsicpstensta.cieseteseenssaisinte 2 sj sneremnsisictsie ademiar de Aaaaiatleieatens eaatenmnad heiwenwenllememeece 1. 81 
POsO pec aes s 2. cin ttet away aaskenuiod nak eNaeny, PoxGe Ene seme 35. 67 29.73 
FOO scssancainredy oyeqaias cseeceuenuy rrncinens1s teawumEaeET Tekh 15. 84 5.79 
MnO ec nee en cree ronnie Me beer ee ees bene eeees 
MOU ponnsivics Sig Yaa ceeoe Saimiasmessiene Bec 28. 88 39. 04 
Ha0 at 105°....-..........- sarees TGial geal Rbionied expitraceresNe SO eee 3. 62 - 51 - 90 
H20 above 105°.........-.. Gasiiadoeiyeenei s Geotem ars Shoes ibaa \ 4 82 97 
Oaiansecacncer neds tnceened stendddeens sos mewaa sea edad ena 7d ewe Rae Hanemasion x fewalncmers - 90 36 
a By difference. 
WARWICKITE. 
From Edenville, Orange County, New York. Somewhat contaminated by spinel, 
from which the warwickite could not be entirely freed. Analysis by J. E. Whitfield. 
See Bull. 64. 
sc igigiptipioiag suet Rayan wile ert ew diate aevelcvclete: 18296) ff (CR Ojai secicscatewics acc ecient ct pelle encores 38 
Ss oa@ aeeiecaeie {eeeviorsskexeeesns pereses ABLG8) | Mg O's 212s: eiadeicas mnmevccmcexboreeevdsemeees, B44 
Sank eee 1516 | HeOes sanseaccenceteeeenczeaet texeeeesssaee 2:80 
eee 9. 44 
sipie.nin Sele eldeswiaeieeser aaa ne eemeomeaeaeesie 14. 23 100. 06 
XI. NITRATES. 
SODA NITER. 
From the Leucite Hills, Wyoming. Analysis by L. G Eakins. The N,O, was not 
determined directly, but calculated to satisfy Na,O-+K,0. 
