40 smithsonian miscellaneous collections vol. 79 



Temperature. 



Site: Dunedin has had rather a checkered career. In the early 

 days it was three miles from the sea, and the height was 

 given as 550 ft. above Mean Sea Level. This was al- 

 tered to 500 ft. in 1874. In 1892 the Observatory was 

 removed, and the altitude was given as 300 ft., until 

 191 3 when it was again removed, from the Leith Valley 

 to the Caretaker's residence in the Park, two miles from 

 the sea, and the altitude is given as 250 ft. above Mean 

 Sea Level. 



Hours: The standard adopted is the mean of the mean daily 

 maximum and mean daily minimum temperatures. 

 Precipitation. 



It was decided that the rainfall records for Dunedin were not 

 sufficiently homogeneous for inclusion. 



SYDNEY, NEW SOUTH WALES 

 Authority. 



Central Bureau of Meteorology, Melbourne, Australia. 

 Pressure. 



Site: The height of the barometer above Mean Sea Level was: 



1859 to 1917, April 14. . . ., 146 ft. 



1917 April 15 to 1922, June 19. 133 ft. 



1922 June 20 to 1924 T38 ft. 



All values have been reduced to Mean Sea Level. 

 Instrwnent: 



1859 ^^ ^909 Newman & Tornaghi barometer. 

 1910 to 1924 Wild-Fuess barometer. 

 Hours: The values are hourly means. 

 Notes: All values have been corrected to normal gravity (1-at. 



45°)- 

 Temperature. 



Instruments and Exposure: The thermometers were exposed in 



a louvred shed with a conical roof until 1909 or 



1910 and in a large Stevenson screen since that 



date. 

 Mean: The standard adopted is the mean between the mean daily 



maximum and the mean daily minimuuL 

 Precipitation. 



Site: The early rain records were begun at South Head, 5 miles 



from the city in April, 1840, and continued there 



