205 



having a knowledge of photography might add very largely to* 

 meteorological science by taking cloud pictures in various lati- 

 tudes. 



The high values for relative humidity at sea will interest 

 those who have not given special attention to meteorology, 

 especially when it is remembered that 25 and 15 are not un- 

 usual percentages for this element in the dry summer climate 

 of the Adelaide Plains. In the latter a percentage of nine, 

 with a difference of over 36° between the dry and wet bulbs, 

 has quite recently been recorded at the Torrens Observatory,, 

 latety established by me, two miles north-east from Adelaide. 



