72 Report S.A..\. Advancement of Science. 



It must be admitted as a rather humiliating fact that in spite of 

 the labours of men like the 4ate Mr. Gamble, Mr. Howard, Mr. 

 Hutchins, and more especially of Mr. Sutton, we are compelled to go 

 to the publications of other countries, such as Germany, England, and 

 America, if we wish to obtain a general idea of our own climate. In 

 fact, the best work on the Climate of Cape Colony known to me is Dr. 

 Karl Dove's " Das Klima der Aussertropischen Stidafrika," published 

 many years ago, but which has unfortunately never been translated 

 into English as far as I am aware. There is perhaps no country in 

 the world where it is so important for the investigator to be 

 thoroughly acquainted with the physiographical features of the 

 country, to enable him to eliminate local peculiarities before proceed- 

 ing to generalise. In this connection I may mention here that an in- 

 vestigation of the tri-daily observations taken at the Royal Observa- 

 tory during the years 1 896-1 900 has led me to very different con- 

 clusions as to the prevalent winds than those given by Dr. Buchan 

 in the " Challenger Report." 



Percentage Frequency Wind-rose constructed from Observations 

 taken at the Royal Observatory at 8h. Noon and 2oh. Local 

 Mean Time, during the Years 1 896-1900. 



