Astronomy. 281 
the cause of this omission. We think there are too many interrogation 
points (?) in the table of mean declinations, p. 262, while most of the 
observations to which they are attached accord very well with the gen- 
eral mean. 
midships of one V to the midships of the other—the eye-piece was 
a bar” oor landsmen are obliged either 
blindly to guess at the meaning or betake ourselves toa vocabulary. 
It may be thought hard if a naval officer in a nayal observatory cannot 
be allowed to speak his native dialect; but we would enquire whether 
this volume of Observations is addressed primarily to sailors. In con- 
clusion we must again express the high satisfaction we have derived 
from an examination of this yolume, and trust we may soon be favored 
with a copy of the observations for ; 
3. Memoria sopra i colori delle Stelle del Catalogo di Baily, osser- 
vali dal P. Beneditto Sestini della compagnia di Gesu. Roma, 1845. 
t 
nderta 
the color of all of Baily’s stars, expecting that we may hereafter be 
able to detect changes in some of them. From the well known purity 
i 4 
through the star, with seven vertical dashes, thus Bb 2 a fs a , three 
_ ©n each side of the star, and numbered from left to right. Number 1 
- denotes fel. ‘nachos 8 orange, 3 yellow, 4 green, 5 blue, 6 indigo, 7 
violet. The white stars have no mark affixed to them. The Catalogue 
Srconp Serizs, Vol. III, No. 8—March, 1847. 36 
