26 



MAGNETICAL OBSERVATIONS. 



OBSERYATIONS AT MIRADOR. 



Description of Station No. V. — Mivador is a large sugar estate, situated on tlie 

 eastern foot of the high volcanic ridge, which connects the Peak of Orizaba and 

 the Coffre of Perote. Its elevation above the level of the sea is about 2,400 

 English feet. The soil is compact red clay, containing some iron. 



The instruments were mounted nnder the veranda (porch) of the house of the 

 proprietor, Mr. Satorius, about 10 feet to the east of the entrance. 



A distant tree, bearing E. by S. (magn.) was used for a mark at the determina- 

 tion of absolute declination. 



