326 REPORT— 1863. 
2nd. The August shower. 
A.D. 830. July 26 corresponds to a.p. 1850, August 9°2. Biot. 
gaa a 487 i d. } »  -10°4, Biot. 
835. pate 3 _ 9 5 8:9. Biot. 
841. nt) Boo ” 5 * ~ 8:4 Biot 
924. » 26-28 ,, a “1 cs 8°1-10°1. Biot 
925. Anh rtie eee PA =5 + 8°8— 9-8. Biot. 
926. ile 3 % * i 8°6 Biot 
933. » 25-30 ,, “ ~ ay 5°8-10°8. Biot 
1243, August 2 % is a »  10°6. Herrick. 
1451. - 5 7 99 _ » 100. Biot. 
Mean...1850, August 9:0 
3rd. The November shower. 
a.p, 585. October 25 corresponds to a.p. 1850, November 12°3. Chasles. 
902. A 29°30" ;, + as o 11°0—12.0. Herrick. 
1582. November 7 °F 45 as “1 10°7. Wartmann. 
1698. + 8°6 rp i 8 4 11°6. Wartmann. 
1799. ss 116 x - = * 12-9, Humboldt. 
1833. =A 12°7 is “6 7 re 13°3. Olmsted. 
—_—.-—_—__—_. 
Mean...1850, November 12:0 
4th. The December periods. 
That of December 6th, 7th is not marked by any early appearances. The 
following early dates belong to the second shower :— 
A.D. 901. November 30 corresponds to a.p. 1850, December 13°3. Herrick. 
930. ” 29 ” ” ” ” 11°6. Biot. 
1571. December 8 a a se 7 11°5. Wartmann. 
Mean...1850, December 12°1 
From the consistency of these results, Professor Newton draws a powerful 
argument in favour of the cosmical origin of the periodic shooting-stars. The 
following dates are selected from his list as favourable for the appearance of 
meteoric showers, viz., January 15th to 19th, February 19th, March 1st to 
4th, April 28th to 30th, October 16th to 18th, and October 31st to November 
6th. The last period includes the occurrences of several of the most remark- 
able showers on record*, 
VY. Mereoric SHower or Aveusr 1863. 
On the 9th and 10th of Angust 1863, observations were made at the 
Greenwich and Cambridge Observatories, at Cranford and Euston Road Ob- 
servatories, and at Hawkhurst, for determining the heights and velocities of 
the annual shooting-stars of this period. The following meteors were simul- 
taneously observed on those evenings at one or more of the observatories, 
and at Hawkhurst. The full particulars of the observations are given in the 
foregoing Catalogue. ¢ 
In Table I., the numbers in the first column refer to the meteors on the 
chart in the order of their appearance, and the stations are represented in the 
same table for shortness by their initial letters, viz.: Ca. Cambridge, Cr. 
Cranford, E. Euston Road, G. Greenwich, H. Hawkhurst. 
* The same mode of correction applied to Mr. Greg’s Catalogue of Fireballs, contained — 
in the British Association Report for 1860, shows that the 28th January, 10th February, 
10th April, 18th, 20th, and 29th July, 4th and 12th August, 13th, 18th, and 24th October, — 
13th to 15th, and 21st November, 11th and 21st December, are dates preferred among 
the larger kind of meteors. 
