160 



iStlles^s Auroral Observations. 



96 1781, Oct. 15. A.B. first appeared at S**. At 1 1'' very bright and 

 flashes with rapidity, of a red cast, in the west, 45° above 

 tlie horizon. 



97 " Nov. 19. A.B., Avhite and red coruscations. At 9'^ the main 

 body of light as liigh as in (ireat Bear. The con;scations 

 in N.W. ascended above the pole star. 



Small Aurora Borealis, 15° high. 

 Aurora Borealis, 6° high. 

 Small Aurora Borealis, fliint, 15° high, 

 Aurora Borealis, light, 10° high. 

 Great A.B. At S^'lO" streams ascended from N.E. 

 zenith. At 8'' 18"" coruscations from east round to 

 Avest by north, meet in the zenith, and at their southern limit 

 formed an arch from horizon to horizon, ])assing through the 

 tail and back of Leo, and a little northward, but very nearly 

 touching Cor Leonis. Vanished in a few minutes. Black 

 clouds lying along under the pole. At 8'' 30™ came over to 

 the southern horizon, partly in vertical streams and partly 

 by luminous nubecula? oblongje, and other seemingly de- 

 tached spots filled the southern hemisphere. A very light 

 zone of perhaps five degrees around the Avhole west and 

 south and east edge of the horizon. Luminous sheets of 

 brightness np aloft in east and in west. Dark cloud still un- 

 der the pole. 



At 8'' 45™ confused in south, coruscations in north. At 

 9'^ stria? and coruscations. At 11'' north hemisphere over- 

 spread with great blotches of dark cloud, interspersed with 

 light clouds. Aurora gone in south. 

 May 6. Small Aurora Borealis. 

 May 24. Aurora Borealis, arched. 

 June 1. Aurora Borealis, 20° high. 

 June 6. Small Aurora Borealis. 



July 20. At 10'' auroral arch frouT Avest a little north, ascend- 

 ing and crossing a little south of zenith, 

 Aug. 5. Aurora Borealis, small. 

 Aug. 12. Aurora Borealis, small. 



Aug. 26. Aurora Borealis. At 10'', arch halfway up to pole. 

 Aug. 27, Small Auroi-a Borealis. 

 Aug. 28. Small Aurora Borealis. 

 Sept. 9. Small Aurora Borealis. 

 Sept. 13. Small Aurora Borealis. 

 Sept. 30. Aurora Borealis, 8° high under the pole. 

 Oct. 1. Small Aurora Borealis. Observed at Newport, R, L 

 Small Aurora Borealis. Observed at Newport, R. L 

 Aurora Borealis, 5° under pole. 

 Aurora Borealis, small. 

 Aurora Borealis, small. 

 Aurora Borealis, 5° high. 

 Aurora Borealis, 10° high, 

 Aurora Borealis, small. 



Very great Aurora Borealis. At 7'' 84™ arch from 



' ' • ' Orion and N, 



103 

 104 

 105 

 106 

 107 



108 

 109 

 110 

 111 

 112 

 113 

 114 

 115 

 116 

 117 

 118 

 119 

 120 

 121 

 122 

 123 

 124 



83. 



1. 



9. 

 26, 

 26, 



1, 

 27, 



Oct. 

 Nov 

 Jan. 

 Feb, 

 Feb, 



Mar. 24. 

 Mar.. 27. 

 Mar. 29. 



W 



of Sir 



by N,, near Venus, passed through belt of 

 "lirius. At 7'' 37"' touched Rigel, Sirius, ar 



and Cor Hydrte. 

 At 7'' 39"' arose a new stream from nearest Avest, and ascended 

 through Rigel to Sirius, 5° wide. At the same time a con- 



