iv. 



four hundred miles per day, and produces evidence which seems 

 to justify the conclusion that they travel rather faster over 

 the ocean between South Africa and Australia, that is, at the 

 rate of four hundred and fifty-eight miles per day. Twenty 

 diagrams of weather and anticyclone tracks are used in illustration. 



The Prize Essay on "Southerly Bursters" was the outcome 

 of a valuable prize offered by The Hon. RALPH ABERCROMBY. 

 It follows the " burster " through all its phases, its connection 

 with moving anticyclones, with the state of the barometer, with 

 the heat of the interior, and with various other phases of weather. 

 Traces them historically, and gives reasons for thinking that 

 they are not so violent now as they used to be. It is illustrated 

 by four cloud pictures and eleven diagrams. 



"Types of Australian Weather." These types forming the 

 third essay, were selected by Mr. ABERCROMBY, and he marked 

 out the way they should be treated, and engaged Mr. HUNT to 

 do the actual work necessary for their publication. These studies, 

 as well as those in the essay on "Moving Anticyclones" have 

 been rendered possible by the extreme care with which the 

 Sydney daily weather chart has been prepared, and passing phases 

 of weather submitted to special study since its commencement. 

 Forty of the weather maps on a reduced scale are used in illus- 

 trating the types. 



