1870. 
1871. 
1872. 
Sorbet aah. 20, 21, Feb. 3, 4, 5, 11, 15, 19, March }, die 
6, 7 
E. Loomis— Comparison of Auroral Displays 
, 14, 18, 31, April 1, 2,6, 6, 7 8, 9, 10 11, 15, 16, 17, May 3, 4, 5, 6, 
a. 11, 12, 13, 24, 28, 29, Sune 5, 6, 7, 8, 29, 30, July 15, 16, Fede 5, 
616 2h at, Sop 948 9,0, ip 12, 13, 14, 15, 22, 24, 25, 26, 27,28, 
29, Oct. 3, 5, 6, 17, 18, 21, 25, 31, Nov. 3, 10, 12, 25, Dec. 7, 13, 15, 
~~ 
25: total 
Jan. 3, 4, 5, 6, 8, 9, 16, 18, 20, 25, 26, 28, 29, 30, 31, Feb. 1, 2, 3, 4, 
5, iL cc 13, 17, 19, 22, 23, 24, 28, March 1, 3, 4, 5, 6, 8, 9, 13, 14, 19, 21, 
22, 24, 25, 28, 30, 31, April 1, 5, 15, 18, 21, =, 24, 25, 29, May 1, 19, 20, 
22, 27, 31, June 18, July 18, 19, 27, 30, Aug. 7, 12, 19, 20, 21, 28, 29, 31, 
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13, 14, 15, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, Nov. 
8, ce Roe 17,'18, 19, 21, 22, 23, o 25, 27, Dec. 10, 15, 16, 17, 21, 0 
23: 
Jan. 1 13, 15, 16, Feb. 5, 9, 10, u, 12, 13, 15, a ai, es 26, March 1 
2, 10, 12, 13, 14, 16, 17, ie 19, 21, 22, 23, 24 jet 5, 8, 9, 10, 11, 13, 
’ Aug. 8, 10, 11, 12, 14, 16, 1%, 21, 22, 26, Sept. 4, 6, 7, 5, 9, 10, 11, 
13, 15, 20, Oct. 4, 9, 12, 13, 15, 16, 17, 18, 19, @ hae 3, 2 3 5, 6, 9, 10, 11, 
14, 15, 19, 20, 21, 22, 30, Dec. 7, 8, 9, 10, 14, 28; total 1 
5, 6, 7, 10, 15, 30, 31, Feb. 6-5 810,15, 17, 18, 2 25, 26, 
? 9, 
6, 27, 28, Aug. 1, 3, 4, 5, 8, 9, 10, 14, 24, 25, 27, Sept. 2, 3, 4, 16, 17, 28, 
ct. 2, 5, 14, 23, 24, 25, 26, 28, 29, Nov. 1, 2, 4, 8 9, 10, ts "19, 23, 24, 25, 
Dec. 3, 6; total 122. 
The total number of auroras for each year as shown in the 
preceding list is given in column second of the following table. 
In orde 
Number of Auroras from 1776 to 1872. 
Year oe Mean||Year | wet Mean|lvear | 4™ ‘wean|lyvear| 4 ‘wfean||Year Au- |yean 
for ras {| Toras | roras wowed ee 
1776; 39 | _. le 3} 9 |11816| 3] 6 ||/1836| 36 | 36 |/1856) 13 | 14 
1777) 81 | 69 |/1797| 15 | 6 ||1817] 11 | 11 ||1837| 66 | 46 ||1957| 12 | 24 
1778} 88 | 97 |/1798' 1 | 8 ||1818| 18 | 14 ||1838| 47 | 55 ||1858| 47 | 40 
1779)123 | 91 |/1799) 7 | 65 |/1819] 13 | 12 |/1839} 63 | 61 ||1859) 62 | 55 
1780) 62 | 94 ||1800/ 6 | 6 |/1820 7 ||1840| 74 | 73 ||1860| 57 | 57 
1781) 97 | 83 |/1801; 5 | 6 ||1821} 3] 3 |/1841| 81 | 69 ||1861) 51 | 49 
1782) 90 | 92 |/1802) 8 | 8 {11822} 2} 2 ||1842} 53 | 57 |/1862| 39 | 40 
1783} 88 | 76 ||1803) 10 | 10 ||1823} 0 | 1 ||1843| 36 | 41 ||1863) 30 | 35 
784) 51 | 65 |/1804) 12 | 15 1824) 2 | 3 |\1844| 34 1864} 37 | 39 
1785 55 | 83 ||1805| 22 | 15 ||1825) 8 | 5 ||1845| 48 | 50 ||1865) 51 | 39 
1786 143 |112 ||1806| 1i | 13 ||1826, 6 | 14 ||1846] 69 | 58 |/1866; 30 | 30 
1787 139 |139 ||1807} 5 | 6 ||1827) 27 | 20 ||1847| 58 | 78 ||1867) 9 | 20 
1788 135 |131 |/1808) 3 1828 26 | 29 ||1848|108 | 83 |/1868) 20 | 41 
1789 118 {112 ||1809} 2) 2 ||1829 34 | 46 ||1849) 82 /104 |/1869 
1790 82 | 93 ||1810| 1 | 1 (1830, 77 | 54 ||1850|122 |104 ||1870)130 [117 
1791, 79 | 76 }/1811| 0 | © |/1831|) 52 | 50 |1851/109 115 ||/1871 125 |126 
1792 66 | 56 |/1812;| 0 | 1 ||1832) 22 | 36 ||\1852|114 | 99 2:122 |.-s- 
1793 23 | 33 |/1813} 2| 4 ||/1833 34 | 28 ||1853) 74 | 75 ||.--.|----|---- 
1794 11 | 14 ||1814| 9 | 5 ||1834) 27 | 26 [/1854| 36 | 42 ||----|--.- -en* 
1795’ 9! 8 ‘isis! 3! 6 'y835' 17! a7 ‘isos! 17! 22 t_._!... 1---- 
