Specimen Observations and Computations 

 Magnetic [Observations and Computations. 



Dip Observations' with Earth Inductor. 



41 



Station: Cheltenham Obs'y, Maryland 

 Earth Inductor No. 48 



Date: Wed. April 1, 1908 Obs'r: H. W. F. 



Chron. No. H. W. F. 



