April, 1872. 
Quart. Fourn. Sct. 
Plate I. 
Fic. 1. 
Ay 
Fic. 2. 
a 
if .s! 
m m : i 
Hy ae 
KY ay 
‘ou 
hy! 
Illustrating the determination of the 
real course of meteors when their 
“radiant point” and velocity are 
known. (See page 144). 
Illustrating the existence of meteoric 
“radiant points.” (See page 140). 
Fic. 3. 
7 
¢ 
4. anemone 
Showing how the arc on the heavens on which lies the true 
radiant of the August meteors can be determined bya 
simple construction. (See page 145). 
