74 



DR. H. S. WASHINGTON ON THE TITANLFER0T7S [Feb. I907, 



Table I. — Analyses oe Western 



6 



Si0 o 



. 44-55 



4766 



44-29 



44-82 



49-00 



52-40 



52-79 



52-67 



A1 2 3 



. 12-48 



14-36 



12-62 



14-06 



15-63 



15-26 



16-45 



15-35 



Fe 2 0, ..... 



2-81 



2-83 



3-61 



4-56 



4-03 



0-74 



2-74 



3-82 



FeO 



8-54 



8-44 



8-84 



7-27 



5-00 



8-33 



6-44 



5-42 



MgO 



. 10-85 



8-19 



10-06 



8-60 



7-86 



7*45 



5-56 



4-40 



CaO 



7-99 



9-36 



9-23 



9-56 



8'16 



7-33 



6-51 



591 



Na 2 



4-04 



351 



325 



3-69 



3-93 



3-54 



3-64 



4-50 



K 2 



2-57 



1-54 



1-82 



2-30 



2-60 



0-99 



1-21 



2-68 



H 2 0+ .. 



0-56 



0-17 



0-21 



0-30 



0-13 



0-29 



1-02 



0-37 



H 2 0- .. 



0-18 



0-20 



0-09 



005 



0-18 



0-06 



0-21 



014 



TiO> 



4-32 



3-83 



4-92 



4-25 



3-25 



3-12 



2-64 



4-04 



PA 



0-70 



0-45 



0-57 



0-67 



0-63 



0-49 



0-39 



0-75 



so 3 



0-05 



n.d. 



005 



n.d. 



n.d. 



n.d. 



n.d. 



n.d. 



NiO 



n.d. 

 n.d. 



n.d. 

 n.d. 



n.d. 

 n.d. 



n.d. 

 n.d. 



n.d. 

 n.d. 



0-06 

 0-08 



0-18 

 0-06 



n.d. 



MnO 



n.d. 



BaO 



n.d. 



n.d. 



0-06 



n.d. 



n.d. 



n.d. 



n.d. 



n.d. 



Totals 



•64 100-54 99-68 100-13 100-40 100'14 



•84 100-05 



1. Monchiquose ; Llord, near Gerona (Catalonia). 



2. Camptonose ; Castelfullit, near Olot (Catalonia). 



3. Limburgose; Las Planas, near Olot (Catalonia). 



Includes 0^02 Zr0 2 and 0-04 SrO. 



4. Limburgose ; Monte Sacopa, near Olot (Catalonia). 



5. Andose-camptonose ; Tres Nuraghes (Sardinia). 



6. Camptonose; Cuglieri, Monte Ferru (Sardinia). 



7. Andose ; Uras, Monte Arci (Sardinia). 



8. Akerose; Monte San Mateo, Ploaghe (Sardinia). 



9. Camptonose ; Monte Sant' Elmo (Pantelleria). 



10. Camptonose; dyke in tuff, Costa Zaneti (Pantelleria). 



Table II. — Norms of Western 





1 



9 



3 



4 



5 



6 







1557 



10-22 

 10-84 

 12-92 

 19-17 



17-19 



4-18 

 8-21 

 1-68 



8-90 

 24-63 

 19-18 



2-56 

 19-59 



12-88 

 4-18 

 7-30 

 1-00 



1112 



15-20 

 14-18 



6-82 

 22-02 



14-10 

 5-34 

 9-42 

 1-34 



13-34 

 13-86 

 16-12 

 9-51 

 21-03 



9-98 

 6-73 

 8-06 

 1-68 



15'57 

 25-15 

 17-24 

 4-26 

 15-37 



9-09 

 5-80 

 623 

 1-34 



0-54 



6-12 



29-87 



22-80 



7-88 

 24-15 



1-16 



5'93 

 1-34 





Orthoclase 





Albite 









Nephelite 









Hypersthene 



Olivine 





Magnetite 





Ilmenite 





Apatite ... 







III. 6.2.4 



III. 5.3.4 



III. 6.3.4 



III. 6.3.4 



II-III. 5.3.4 



III. 5.3.4 





