58 Transactions of the Boyal Society of South Africa. 
Bechuanaland/'' To reduce the new observations to the epoch repeat 
stations were made at Eendekuil, Hollerivier, Aggennys, and Pella. 
In the following table the various stations are arranged in alphabetical 
order. The number of each station is given in the first column, the 
name is given in the second, and in the third, fourth, fifth, sixth, and 
seventh columns are given the latitude, the longitude, the declination, 
the dip, and the intensity respectively. 
The values of the declination, the dip, and the horizontal intensity 
have been obtained from the actual field results by applying a secular 
variation correction ; in no case has a correction for daily variation been 
applied. The observations without secular correction are given in the 
publications already referred to. 
The results are shown in three maps, one showing the isogonics, one 
the isoclinals, and the third the lines of equal horizontal intensity ; the 
method of drawing the isomagnetic lines is that described on page 82 of a 
" Eeport of a Magnetic Survey of South Africa." 
* "Further Magnetic Observations in South Africa," by J. C. Beattie, Transactions of 
the Royal Society of South Africa, vol. iii., 1913. 
