Pirate XIII. Meteorological Obsery 
Barometer Dry Bulb Thermometer 
E Zhe arrows indicate the direction of the wind, and 1, 
eS Ci CS a ee eA i232 eee 
+ Bulb Thermometer 
&g 
ations for the month of April, 1873. 
Temperature of Sea Surface 
bers beneath us force according to Beauforts scale’ 
i718 10 a ee gee 2829 
LAAT >I 
i Ses 
FAY 1 WO) PE C3 
30 
