A CATALOGUE OF OBSERVATIONS OF LUMINOUS METEORS. 387 
1845 
85 
1850 
83 
1846 
92 
1851 
71 
1847 
102 
1852 
60 
1848 
113 
1853 
52 
1849 
98 
Which is thus rapidly declining since 1848. 
No. 2.—M. George von Boguslawski. PoggendorfFs Annalen, 1853, No. 
10, p. 338, 
Maintains the continuance of the August meteor period in opposition to 
CoulvierGravier who contends that that maximum has been decreasing since 
1848, and that in 1860 it will at the same rate cease to appear altogether. 
But his observations were always made at midnight, which M. Boguslawski 
observes cannot give a fair average. 
Again, these periodic appearances are characterized by having a definite 
origin in the heavens. M. lleis has observed three such points; on Aug. 10, 
J8A2, he observed out of 32 meteors, 14 originated from Perseus, 8 from 
Draco, 6 from the North Pole, and 4 Sporadic. 
1853, Aug. 9. — From 10 p.m. to 2 a.m. though the sky was partly clouded 
Jft 20 were seen, of which 12 originated in Perseus. The phenomenon was 
at Aachen (Aix), Ghent, Munster, Bonn, Brussels, Oxford, Newhaven, 
and many other places. 
tere is no particular hour at which the maximum takes place. In 1837 
ng- 10, the hour of maximum was different at different places, the sky 
it /Vi ly dear both in Europe and in the United States. At Paris 
2 to 3 PaCe fr ° m 11 to 12 ? at Breslau from 1 to 2 a.m.; at Mailand from 
In 1838, Aug. 9 and 10 in the United States from 3 to 4 a.m. 
1839, Aug. in / at Breslau 1 to 2. 
iq>, . ’ lat Frankfort from 12 to 1. 
flJo ^ Ug * 10 > Aix 9 to IB. 
‘842, Aug. 9, Aix 10 to II. 
” >» 10, „ 11 to 12. 
IB,. , » 11> » 12 to 1. 
844, Aug. io, „ io to 11. 
Bow3M“ g ; U » » 12 to 1. 
August l i !u l • 0 ^ en * es Coulvier Gravier’s assertion that from July 26 to 
f r °wCoulv -th l rise . Awards the maximum is continuous; as he shows even 
of c ontimii! er ^? vier s owu observations, that there is a marked interruption 
Be oontf-i ? , sut ^ en r ' 8e between the 8th and 9th of August, 
to the varvin - n 1 tlle niax * n ‘oni is very unequal in different years, owing 
He refpY- f „ ue,JCes of unknown cosrnical causes. 
fefl» re .. . Humboldts refutation of Coulvier Gravier’s views as to the 
He also nr °y L ember P er >°d hi ‘ Comptes Rendus,' No. 29, p» 601. 
tinuecl histm- 1 i 1 ■ tbe cv hleiice for the August period rests on long-con- 
n ° w cease. * CU evi< * ei,ce for ages past; it is, therefore, improbable it should 
In the'Bmi-? Uete l et on the August Meteors 1853. 
* Suable “ a ? ,D8 of tiic Academy of Brussels (vol. xx. No. 9) there occurs 
lr Jth of : —“ 0° the periodic falling stars of the 9th and 
Th ^ 8 ' l853> by M ' A ‘ Quete,et> ' oI " hich thC fo,lowing ‘ S a tranS " 
( hc leturn of falling stars has been again verified this year. On 
2 c 2 
