CERUSSITE CRYSTALS FROM BROKEN HILL AND MULDIVA. 303 





Segment. 



v 



Limits. 



Number of 

 Observations. 



</>o 



I 



286° 9 



286° i - 286° 10 



5 



0° 



II 



343 30 



343 22 - 343 37 



4 



57 21 



III 



43 24 



43 20 - 43 29 



7 



117 15 



IV 



353 16 



353 11 - 353 28 



8 



67 7 



v 



50 43 



50 36 - 50 53 



6 



124 34 



VI 



48 53 



48 52 - 48 53 



3 



122 44 



VII 



51 30 



51 14 - 51 46 



2 



125 21 



VIII 



348 58 



348 52 - 349 6 



5 



62 49 



IX 



51 51 



51 47 - 51 59 



5 



125 42 



X 



37 59 



37 49 - 38 7 



3 



111 40 



XI 



100 49 



100 43 - 101 4 



4 



174 40 



XII 



348 16 



348 13 - 348 19 



2 



62 7 



XIII 



340 30 



340 30 



2 



54 21 



Disentangling the twins we have the following results: — 



Oalc. for r-twin 57° 18'. 



Segments. 



Meas. b 



A b 



I, II 



57° 21' 



I, VI 



57 16 





III, XI 



57 25 



^Oa] 



IV, V 



57 27 





X, XIII 



57 19 j 





I, III 



62 45 v 

 62 49 



62 41 lOal 



I, VIII 



II, XI 



/III, IX 



62 53 Ua 



III, XIII 



62 54 





X, XI 



63 00 





^Oalc. for m-twin 62° 46' 



