412 



METEOROLOGICAL OBSERVATIONS. 



U. S. SHIP YINCENNES. 

 HONOLULU, SANDWICH ISLANDS. 



OBSERVATORY. 



INSTRUMENTS USED ON SHORE. 



Standard barometer. 

 Thermometer attached. 



with the bulb covered with black wool, 

 with black bulb. 



with the bulb covered with white wool, 

 with plain bulb. 

 in a hole, four and a half feet below the surface. 



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

 There was also a thermometer placed in a jar of water and buried six and a half feet deep in the ground, 

 (black scoriae,) which gave the temperature after fifteen days, at 82-5. 



South exposure. 



