48 



MAGNETICAL OBSERVATIONS. 



Station No. II. Potrero. 



A. North pole 

 A South pole 



Mean 



Needle No. 1. 



. 43° ir.8 

 . 42 44.4 



. 42 58.1 

 Kesulting dip, August 17, 42° 5r.2. 



Station No. III. CocoLArAM near Orizaba. 



A. North pole 

 A. South pole 



Mean 



Needle No. 1. 



43° 22'.5 

 42 9.1 



. 42 45.8 

 Resulting dip, August 26, 42° 51'.5. 



Station No. IV. San Andres Chalchecomula. 



A. North pole . . . . 



A. South polo . . . . 



Resulting dip, September 18 



Station No. V. Mirador. 



A. North pole 

 A. South pole 



Mean 



Needle No. 1. 



44° 7'.7 



41 8.7 



42 38.2 



Needle No. 1, 



43° 43'.7 



43 55.0 



. 43 49.4 

 Kesulting dip, October 10 and 11, 43° 49'.8. 



Station No. VI. City of Mexico. 



A. North pole 

 A. South pole 



Mean 



Needle No. 1. 



41° 35'.1 

 41 16.0 



. 41 25G 

 Resulting dip, December 17, 41° 26'.3. 



Station No. VIII. Rancho Tlamacas. 



A. North pole 

 A. South polo 



Needle No. 1. 



42° 30'.3 

 42 26.4 



Mean 



. 42 28.4 

 Resulting dip, January 25, 42° 34. '3. 



Needle No. 2. 



44° 13'.2 



41 15.3 



42 44.3 



Needle No. 2. 



44° 18'.3 



41 36.1 



42 57.2 



Needle No. 2. 



45° S'.O 



42 37.3 



43 50.2 



Needle No. 2. 



41° 24'.7 

 41 29.3 



41 27.0 



Needle No. 2. 



42° 37'.8 

 42 42.6 



42 40.2 



recapitul.'vtion of results of the magnetic.\l observations. 



