REPORT OF THE CHIEF ASTRONOMER 



SESSIONAL PAPER No. 25a 



GROUP X. 



689 





PLU TONICS. 



Ekfusives. 





63 



64 



€ 



5 



66 



67 



68 



69 



70 





















a 









^rJ3 





■"•» 





s 



o 



CO 

 CO 



u 







ft 





c3 







o 



s 



aj 



i3 



H 



ftTi 



m 



J« 









u 





n •— : - 





pq c3 





03 



.5 



ft 



<D 



09 



.S a 

 vi a 



0) c3 



te 



•inn 



;on 



is c 



a a 







a 







H 



CQ 



ftO 



sO a 



ftO 



log 5 





rCi 



















H 



CQ 



< 



< 

 20 



4 



hi 

 20 



16 



►J 



No. of Analyses. 



6 



6 



24 



4 



Si0 2 



45 61 



48 66 



49- 14 



44 41 



46 



91 



49 90 



44 20 



45 34 



Ti0 2 



1 



96 





97 



1 



00 



1 56 



1 



81 





16 



1 



64 



1 



30 



A1 2 3 



14 



6 



35 

 17 



12 

 3 



36 



OS 



16 

 3 



57 

 65 



15 81 



4 66 



15 



7 



25 

 70 



16 

 3 



94 

 02 



15 

 4 



64 

 35 



16 

 5 



59 



Fe 2 3 



83 



FeO 



4 



03 



5 



86 



6 



68 



5 85 



4 



06 



7 



15 



6 



14 



4 



76 



MnO 



6 



19 

 05 



8 



13 



09 



3 



30 



98 



14 



820 



1 

 2 



43 



95 



4 



23 



22 



8 



19 



89 



5 



01 



MgO 



43 



CaO 



9 

 5 

 3 



2 



49 

 12 

 69 

 60 



74 



10 

 2 

 5 

 1 

 1 



46 1 

 71 

 15 

 46 



07 



9 

 2 

 3 

 2 



88 

 57 

 39 

 00 

 84 



10 12 



381 



2 37 



242 



■65 



9 

 4 

 2 

 2 

 1 



36 

 25 

 63 

 51 

 14 



10 



2 

 3 



1 



04 

 24 



57 

 74 

 79 



9 

 4 

 1 



2 



74 

 03 

 83 

 67 



68 



11 

 2 

 4 

 1 



64 



Na 2 



93 



K 2 



55 



H 2 



12 



P 2 5 



50 

































Calculated as Water-free. 



Si0 2 



Ti0 2 



A1 2 3 



Fe 2 3 



FeO. 



MnO. 



MgO 



CaO. 



Na 2 



K 2 0.. 



P2O5 



46 



83 



49 



38 



50 



15 



45 



51 



48-12 



50 



79 



45-41 



45 



1 



98 





98 



1 



02 



1 



60 



1-86 





16 



1-68 



1 



14 



73 



12 



55 



16 



90 



16 



20 



15 65 



17 



24 



16 07 



16 



6 



34 



3 



12 



3 



72 



4 



78 



7-89 



3 



07 



447 



5 



4 



14 



5 



95 



6 



82 



5 



99 



416 



7 



28 



6 31 



4 





19 





13 





31 





14 



147 





23 



•20 





6 



22 







21 



4 



06 



8 



41 



302 



4 



30 



9 13 



5 



9 



75 



10 



62 2 



10 



08 



10 



37 



960 



10 



22 



10 01 



11- 



5 



27 



2 



75 



2 



62 



3 



90 



4 36 



2 



28 



414 



2 



3 



79 



5 



23 



3 



46 



2 



43 



2 70 



3 



63 



188 



4- 



I 



76 



1 



08 





86 





67 



117 





80 



70 





Each sum = 100 00. x Includes 40% BaO and 03% SrO. - Includes '41% BaO and '09% SrO. 



