ATMOSPHERIC ELECTRICITY AT BLOEMFONTEIN. 



265 



The time at which the maxima occurred is approximate only as- 

 the instrument was not self recording-, and it may be out by 15 

 minutes or so. The maxmium barometer readings are also given. 

 The daily variation is very small in Blocmfontein. The potential 

 gradient is given in volts per metre. 



The times given in the last column are a.m. unless otherwise 

 stated. 



