I. 
Catalogue of the Magnitudes of Southern Stars from 0° to —SO" Declination, to the 
w 
Magnitude 7-0 inclusive. 
By EDWIN F. SAWYER 
J ' - 
Presented May 11, 1892. 
INTRODUCTION. 
The present work comprises a determination of the magnitudes of all stars as 
bright as the magnitude 7.0 in the belt from the equator to south declination 30\ 
ther with some a few degrees outside of these li 
The work was undertaken 
the beg 
of 1882, and was substantially finished in 1887, although for the 
purpose of complet 
many additional obser 
were made in 1888, and t. 
t^ations included is 13,654 
d the number of stars in the Catalogue is 3,415, the average number of obser 
few in 1889 and 1890. The total number of obser 
vations to^ each star being 4.0 
The general 
has bee 
to observe every star three times. A reference 
to the Catalogue and the notes will show that there is only a small proport 
wh 
at least this number of obse 
h 
not been 
ed 
h 
on the 
trary, mor 
I was inci 
ted to 
half of th 
and er take 
have been observed four times 
more 
the 
ind 
tending a review of 
Argentina early in the previous decade 
•k by 
a 
g nnp 
of the value at- 
the ground gone over by 
Dr. Gould in the U? 
in this latitude 
I 
its 
pt 
I had 
least so much of it as 
in mind to occupy a 
could be 
somew 
red 
der 
belt than that here included, and had, indeed, begun the series wi 
ith obse 
extended to the 
thern boundary of the Uranomeiria Argentina, -flO°. Afterwards 
it was deemed best to restrict myself to the region belo 
the 
to bring the undertaking more conveniently within the time at my disposal 
quator, in order 
for 
the 
pletion of 
scheme within a 
r 
able period. The magnitudes here 
derived are founded upon the system of the U) 
Argentina ; and 
fact 
VOL xir. 
1 
Mo. Bot. Garden. 
1«&7. 
