500 Pirsson and Washinyton — Geology of New Hampshire. 



Vols. Weights. 



Apatite __ 1*9 1-8 



Iron ores 6*4 10*8 



Hornblende 31*7 34*9 



Plagioclase 53*2 46*6 



Calcite 6*7 5*8 



Total 99-9 99*9 



The amount of apatite is undoubtedly too low, for, as may 

 be seen in the norm, the phosphoric acid demands about 2 per 



Analyses or Camptonose and related Eocks. 





I 



II 



III 



IV 



V 



VI 



VII 



Si0 2 ... 



42*73 



41-63 



41-94 



48-22 



46-59 



44-22 



•713 



A1 2 0,~ 



14*50 



13-26 



15-36 



14-27 



17*55 



12-73 



•142 



Fe 2 O t - 



4-03 



3-19 



3-27 



2-46 



1-68 



5-68 



•025 



FeO... 



7-28 



9-92 



9-89 



9-00 



10-46 



5-18 



•101 



MgO.. 



5-46 



7-3-1 



5-01 



6-24 



7-76 



6-98 



•137 



CaO... 



8-46 



8-86 



9-47 



8-45 



10-64 



11-57 



•151 



Na 2 0__ 



3-11 



2-49 



5-15 



2-90 



3-31 



2-12 



050 



K 2 0___ 



2-28 



3-32 



0-19 



1-93 



0-72 



1-71 



023 



H 2 OllO° 



+ 3-08 



1-35 



3-29 



1-66 



o-io 



2-74 . 





H 2 OllO° 



-0-36 











0-28 



0-07 







... 



co 2 .._ 



3-76 



5-20 



2-47 



0-15 



_ 



3-66 . 







Ti0 2 __ 



4-30 



3-95 



4-15 



2-79 



1-41 



2-50 



054 



PA ._ 



0-93 











0-64 







1-05 



006 



s ..... 



0-18 













.... 







CI 



tr. 



.... 







o-io 











CuO... 



none 









tr. 











NiO... 



tr. 









0-03 













MnO.. 



0-19 



0-27 



0*25 



0-20 



_ _ _ _ 



0*45 





BaO_._ 



tr. 











0-04 









100-65 99-80 



= S__ -05 = C1,F 0-04 



Total.. 100-60 100-75 100-44 99-76 100-29 100-59 



I. Hampshiral-camptonose (camptonite). Mt. Belknap. H. S. 

 Washington analyst. 



II. Augite-ourose (diabase). Livermore Falls, Campton, N. H. 

 G. W. Hawes analyst. (This Jour. (3), vol. xvii, p. 150, 1879.) 



III. Hampshiral-livermorose (camptonite). Ibidem. 



IV. Hampshiral-camptonose (camptonite). Mt. Ascutney, Ver- 

 mont. Daly (Bull. 209 U. G. Geol. Surv. 1903, p. 87). W. F. 

 Hillebrand analyst (includes Zro 2 , -03 ; F, -05 ; FeS, -36). 



V. Hampshiral-auvergnose (camptonite). Salem Neck, Mass. 

 Washington, (Jour. Geol. vii, p. 285, 1899.) 



VI. Hampshiral-camptonose (camptonite). Kjose Aklungen, 

 Norway. Brogger (Erup. Gest. Krist. iii, p. 51, 1899). L. 

 Schmelck analyst. 



VII. Molecular ratios of No. I. 



