H. A, Newton on numbers of Shooting Stars. 193 
The heavens were — as follows among the several ob- 
Servers: Mr. C. G. Rockwood (R) looked toward the south, 
Mr. N. P. Hulst (H) to +h west of south, and so on, following 
around the horizon, Messrs. J. J. DuBois ©) M. D. M oe 
- H. Adams (A » Crk vecomene Gi Fit Tallon (D), B 
G 
A 2M 
N 
© 
4 
S 
| 
= a 
® 
o 
wad 
oO 
es 
wi 
ete 
=| 
no) 
© 
5 
© 
=] 
et 
o 
© 
wa 
3 
ro) 
2 
o 
4 
3) 
H F 
R 
a=8 sre AMT=1 AETW=1 aGMTWw==1 
B=7 DH== BDR=!1 AMPT== BEFPR==2 
D=5 pM=3 BFH=1 BDMR==1 BEGTW==1 
E=5 EM= FP== BFHP==1 von 
r= ers BrR=2 puME=1 BFPRW=1 
¢=11 bes B EFPR=1 pumMpr=1 
u=10 = BEP= EFPT=1 EFGPW==1 
M=7 et—2 BHR==2 EFRW=1 EFHPR==1 
P=4 pM=1 DFH= _ EFPRW=1 
R= HR=5 DHM= EGTW=-1 FHMPR=1 
™9 PR=2 pur=3 FHPR==2 ABFHMP=1 
w=2 pw r@w== FMPT= AEFPTW== 
AE= ADM= EPW== GMTWw=38 AEGMTW== 
,A46=1 ADR== = ABDGM==1 EFHMPR=1 
AM= AEG=2 FHR==2 ABEPW== ABEFPRW==1 
4a AGM== ABGT== =] AEFHPRW== 
aw=] aGT= apaM=1 AEFPW=1 BD 2 
BR=2 acw= AEGP== AEGMT==1 
BP=1 AMR=1 AEGW== aEGIw=1 
If we denote by a the whole number seen by Adams, and 
80 of the others, we find yer this table the following equations : 
A= 45, B= 36, p=27, E= 42, F = 389, G6 =36, 
H=45, = 41, p=40, kR=52, T=82, = 81. 
The mean is 38°75, which is the average number seen by each 
observer. Hence we have the proportion, 
No. seen by one person : No. seen by twelve :: 3875: 186. 
he ‘buftibers seen by individual observers vary between n 27 
The di 
of vision of the observers, and in fixedness of attention, may 
account for this variation. In the mean of the results: hes 
Am, Jour. Sct.—Szconp — Vou. XLI, No. 122.—Mancu, 1866. 
25 
