NO. 9 



BRIGHTNESS OF LUNAR ECLIPSES FISHER 



37 



According to Young's General Astronomy, 1898, p. 259, the mean 

 parallax is 57' 02". In the table the 37 eclipses are grouped in three 

 columns, the center column including parallaxes within 02' of this 

 mean, or from 55' 02" to 59' 02". This begins with the break — doubt- 



less due to the accidents of observers' reports- — between 54' 48" and 

 56' 11", and extends to the beginning of 59', in which there are only 

 two records. (It is rather odd that the observations should be 

 accidentally so condensed into the apogee and perigee minutes of 

 parallax.) 



