f 



Meteorological Notices in Indiana. 



295 



The thermometer which has been used latterly, is one of Pasto- 

 relH's spirit thermometers, which registers the lowest temperature. 

 (Unfortunately the registering day thermometer was broken in bring- 

 ing it to this country.) The barometer is one which was purchased 

 m Liverpool in 1827, calculated for measuring heights. That it is 

 quite accurate, I am not prepared to say : during my absence in Eu- 

 rope, it fell and the glass tube was broken ; since my return, I have 

 replaced it, taking care to purify the mercury and boil it in the tube. 

 But, as it is the first barometer I ever attempted to construct, I fear 

 It may not be quite free from air; indeed, in comparing my baro- 

 metrical observations with those of Mr. Redfield, I must believe, 

 that mine are too low, or else, there must be a remarkable difference 

 between the indications of the instrument, here and in New York. 

 However, such as they are, I shall give them ; they will serve, at 

 all events to show the range, and you can make use of them, or not 

 as you please : 



Barometer, New Harmony. Latitude 33^ IT N., Longitude 

 87^ 55' W. From the 1st of February, 1828, to the 1st of Februa- 

 ry, 1829. 



Months. 



February, 



March, * 



April, 



May, 



June, 



July, 



August, 



September, 



October, 

 November, 



December, 



Janu 



ary 



Mean. 



29.574 

 29.583 

 29.547 

 29.547 

 29.538 

 29.604 

 29.638 

 29.688 

 29.697 

 29.555 

 29.746 

 29.611 



I Maximum. 



30.075 



Mean for the year, 

 Maximum for the year, 

 Minimum for the year, 

 Range during the year, 



29.886 

 29.912 

 29.830 

 29.660 

 29.780 

 29.800 

 29.890 

 29.950 

 29.990 

 30.100 

 30.150 



Minimum. 



Range. 



29.050 

 29.150 

 29.030 



29.360 

 29.290 

 29.450 

 29.450 

 29.490 

 29.400 

 29.140 

 29.270 

 29.200 



29.609 



30.150 



29.030 



1.120 



