8 



AURORAS OBSERVED AT CAMBBIDGE. 



323 

 324 

 325 



327 



328 

 329 

 330 



21. 

 331 Dec. 14. 



Aurora very active. From 10 h to ll h P. M., 

 fine double arch at the north. 

 Sept. 24. Aurora, at 9 h P. M. 

 " 27. Slight Aurora. 

 " 28. Aurora, very fine from 9 h to ll h . 

 326 Oct. 1. Aurora dimly visible through the 

 clouds, at 9 h 1'. M. 



" 12. Remarkable auroral arch iu south 

 from 6 h to 7 h P. M. 

 " 18. Aurora, at 9" P. M. 

 " 20. Active Aurora, early in the evening. 

 Aurora, at 9 h P. M. 

 Fine Aurora seen yesterday morn- 

 ing between 5 and 6 o'clock. 

 1860. 



332 Jan. 15. Fine rosy Aurora, from 8 h to 9 h . 



333 Mar. 27. Very brilliant Aurora, of a rich red 



334 Apr. 13. Aurora at 9 h P. M. ; very active la 



ter in the evening. 



335 "14. Aurora, at 9 h P. M. 

 Aurora last night, in the horizon. 

 Slight Aurora, at 9 h P. M. 

 Active Aurora, at 9 U P. M^. 

 Aurora. 



Active Aurora, at S h P. M. 

 Brilliant auroral arch, at 9 h P. If. 

 Fine rosy Aurora, from 8 h to 9 b . 



1861. 



Slight Aurora. 



Aurora, at 9 h P 



Aurora, at 9 h P. 



Aurora, at 8" P. 



Aurora, at 9 h P. 31. 



Aurora, at 9 h P. M. 



Aurora. 



1863. 



Fine auroral display. At precisely 

 M., a remarkable and very bright 

 band from near the horizon, on either side, 

 passed exactly through our zenith and 

 within 4° of Arcturus. It moved slowly to 

 the south. Observed at Newburyport at the 

 same time. J. H. S. 6aw the same, or nearly 

 the same band, reform about 12 h 20 m . 



1864. 

 *351 June 7. Aurora. 



352 Sept. 20. Aurora visible in early twilight 

 At 7\ a band about 7° wide extended from 

 W. N. W. across* the zenith to E. S. E. At 

 7 h 20 m , two arches, the highest 15 c above N 

 horizon, connected by streamers. 

 *353 Nov. 19. Aurora. 



336 May 11. 



337 " 23. 



338 July 19. 



339 Sept. 6. 



340 Oct. 11. 



341 Nov. 4. 



342 Dec. 15. 



343 Jan. 13. 

 '344 " 22. 



345 " 31. 



346 Feb. 27. 



347 Mar. 9. 



348 Apr. 8. 



349 Aug. 4. 



350 Apr. 9. 



9 h P. 



. M. 

 M. 

 M. 



Red. 



1866. 



Jan. 8. Slight Aurora, at 9 b . 



" 1G. Aurora, from 6 h to I0 h . 



" 27. Slight Aurora. 



Feb. 16. Low arch, at 9\ 



Mar. 5. Aurora, at I0 h . 



" I! Annua from 9 h to 12\ brilliant in X. 



" 18. Arch from east to west, at ll h . 



Apr. 16. Slight Aurora in north. 



" 17. Slight Aurora in north. 



May 3. Aurora, at 10" 30 m . 



" 14. Aurora, at 10 h . 



June 15. Aurora low in the north, at 1 l h 30"'. 



July 12. Aurora from ll h to 12 h . 



Sept. 6. Slight Aurora, at 10 h . 



" 12. Aurora, at 10 h . 



Oct. 3. Aurora, feeble and low. 



" 4. Aurora, feeble and low. 



1867. 



*371 May 2. Slight Aurora. 



*372 " 4. Slight Aurora. 



*373 " 27. Aurora. Bright at 10\ 



*374 July 28. Aurora. 



*375 Sept. 21. Bright Aurora. 



*376 " 23. Aurora. 



1 *377 " 25. Slight Aurora. 



|*378 " 26. Aurora. 



1868. 



*379 March 19. Slight Aurora, at 10 h ". 



| *380 " 24. Slight Aurora, at 10 h . 



1 *381 April 13. Bright Aurora, at ll h . 



♦382 " 17. Slight Aurora, at 10" 30 m . 



*383 " 18. Aurora in the north during the 



evening. Arch low. About 10 h , streamers. 



*384 May 12. Aurora at IP. 



*354 

 *355 

 *356 

 *357 

 *358 

 *359 

 •360 

 *361 

 ♦362 

 *363 

 *364 

 *365 

 *366 

 ♦367 

 ♦368 

 ♦369 

 *370 



