METEOROLOGICAL JOURNAL. \lL) 



REMARKS. 



Eighth Month. 4. Wet afternoon. 5. Wet morning. 

 6. " The day was gloomy : about 4. p. m. a very heavy shower 

 commenced, which continued for about 20 minutes, then 

 abated for a short time, but increased again, and continued all 

 the evening, with thunder and lightning : the barometer was 

 nearly stationary." Such were the phaenoraena at the labora- 

 tory, where there fell 1-39 inches, of rain. At Plaistow, two 

 miles distant, there appears to have fallen only 0"41 inches of 

 rain, and I find only this note, *' Thunder in the afternoon." 

 13. Foggy morning : a stratus at night. 14. The same. 

 17. The same : Lunar halo. 18. Some lightning during the 

 night. 21. Thunder between one and two p. m- 24. Bright 

 moonlight. 28. The wind this night very high. 30. Very 

 showery.^ 



RESULTS. 



Prevailing winds westerly. 



Barometer : highest observation 30*15 inches ; lowest 29*76 inches ; 



Mean of the period 29*968 inches. 



Thermometer : highest observation 78" ; lowest 43. 

 Mean of the period 57*91". 



Evaporation 2*75 inches. Rain 1*34 inches. 

 Plaistow. L. HOWARD. 



Ninth Month, 15, 1812. 



P. S. The observations on the barometer, wind, and evaporation, 

 with the remarks, for the last two months, are chiefly due to my friend, 

 John Gibson. The account of temperature and rain was carefully 

 kept (during my absence) at Plaistow. 



