50 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



MAY 2, 1883. 



o 

 o 



A. M. 



6.30 



7.00 



8.00 



9.00 



10.00 



10.30 



11.00 



11.30 



12.00 



p. M. 



12.30 

 1.00 

 2.00 

 2.30 

 3.00 

 3.30 

 4.00 

 4.30 

 5.00 

 9.00 



Barometer. 



Observed 

 reading. 



29. 902 

 .909 

 .915 

 .910 

 .900 

 .887 

 .870 

 .850 



.8.32 



.825 

 .807 

 .802 

 .805 

 .808 

 .817 

 .827 

 .845 

 .913 



Reduced 

 readiue. 



29. 94 

 .94 

 .95 

 .94 

 .93 

 .92 

 .89 

 .87 



.85 

 .85 

 .83 

 .82 

 .83 

 .83 

 .84 

 .85 

 .87 

 .94 



Thermometer. 



Dry. 



81.6 

 82.0 

 84.0 



84.8 

 86.0 

 87.3 

 87.0 

 87.8 

 87.8 



87.4 

 87.0 

 87.1 

 86.7 

 84.5 

 84.5 

 84.0 

 83.1 

 82.7 

 81.0 



Wet. 



76.0 

 75.5 

 76.2 

 76.7 



76.8 

 78.4 

 78.0 

 77.5 

 78.9 



78.0 

 77.9 

 78.0 

 78.0 

 76.2 

 76.6 

 76.0 

 75.7 

 75.6 

 75.0 



a 



a 



« 



78 

 72 

 67 

 68 

 66 

 65 

 66 

 61 

 66 



62 

 66 

 66 

 67 

 67 

 67 

 68 

 68 

 73 

 74 



a 



a 

 <1 



246.8 

 250. 3 

 258.1 

 265.2 

 270.7 

 272.4 

 273. 6 

 274.8 

 276. 6 



277.9 

 278.9 

 279.7 

 280.0 

 280. 5 

 281.4 

 282. 1 

 283.5 

 284.7 

 292.7 



•a 

 a 



NE. 

 NE. 

 NE. 

 NE. 

 NE. 

 NE. 

 NE. 

 NE. 

 NE. 



NE. 



NE. 

 Calm 

 Calm 



NE. 

 NE. 

 NE. 

 NE. 

 NE. 

 NE. 



Fair. 



Clear. 



Clpar. 



Clear. 



Clear. 



Clear. 



CK'ar. 



Clear. 



Clear. 



Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 

 Clear. 



3 cum. 

 2 cum. 



1 iiim. 



2 cum. 

 1 cmii. 

 1 cnni. 



1 Ctlltl. 



1 cum. 

 0. 



0. 



0- 

 0. 

 0. 

 0. 

 0. 

 0. 

 0. 

 0. 



1 CUU'. 



Clouds. 



Miscellanemts. — Minimum, 80.2. Minimum at ground, 80.8. Maximum, 88.7. 



MAY 3, 1883. 



« Probably should be 29.937. 

 Miscellaneous. — Minimum, 76.2. Minimum at ground, 75.5. Maximum, 88.1. 

 R.ain began at 6.00 p. m. Light showers in the evening, with occasional thunder and lightuinf; 

 ured on the 4 th. 



Rainfall meas- 



