xxxii Transactions of the Royal Society of South Africa. 
The declination, dip and horizontal intensity are given for 27 stations, 
including two repeat stations in the Free State, Transvaal and Cape 
Provinces. The methods and instruments used are the same as in previous 
work of this nature in South Africa. 
" True Isogonics and Isoclinals for South Africa for the Epoch July 1st, 
1913." By J. C. Beattie. 
The results at about 700 stations have been reduced to this epoch from 
observations at about 40 repeat stations fairly distributed over the greater 
part of the region. The greater number of the observations were made in 
1903 and 1909, and the stations occupied are in the Cape, Free State, Natal, 
and Transvaal Provinces, in Damaraland, Southern E-hodesia, Northern 
Ehodesia, the Bechuanaland Protectorate, and Portuguese East Africa. 
The westerly declination has decreased in the ten years 1903-1913 by 
about 1^ degrees in the west, and 2 degrees in the east. In the same period 
the southerly dip has increased by approximately 1 degree in the east and 
11 degrees in the west. 
"Descriptions of some New Aloes from the Transvaal." By I. B. Pole 
Evans. 
The paper describes the following six new species of Aloes : A. vere- 
cunda, A. Simii, A. Barbertoniae, A. Petricola, A. sessilifolia, and A. 
Thorncroftii. 
" A New Harmonic Analyser." By J. T. Moerison. 
In many physical researches, especially in the domain of meteorology, it 
is necessary to inquire whether a fluctuating quantity, such as atmospheric 
pressure, daily or monthly rainfall and the like, shows signs of regular 
periodic variations, and the necessary operations are performed mechanically 
by the harmonic analyser described. 
