250 



METEOROLOGICAL OBSERVATIONS. 



U. S. SHIP VINCENNES. 

 SYDNEY, NEW SOUTH WALES. 



OBSERVATORY. 



INSTRUMENTS USED ON SHORE. 



Standard barometer. 



Attached thermometer. 



Thermometer, the bulb covered \vith black wool. 



" -white " 



" " " lampblack. 



" uncovered. 



Temperature of water, and thermometer at mast-head, observed on board U. S. Ship Vincennes. 

 Hygrometer. 



