30 



Minutes and Seconds of Celestial arc. 

 1' 1'30" 2' 2' 30" 3' 3' 30" 4' 



* .1 





> f 





(N.B. 1"= 



450 Miles.) 









- 10,000 



© 



© c 



©^ 

 ©* 



i 1 i 



© c 

 © c 



1 1 I 



Scale in 

 Centr 



English Miles at the 

 3 of the Solar Disk. 





, 





M<* 



S* 



■ 



*&gZ2 





* 









K ^ 





VARIOUS SOLAR SPOTS 



As seen projected on a Screen; all to the same Scale; and as observed and measured 



by the aid only of 3 Inch aperture, Power 120 linear 



'ig. 2.— Jan. 25, 11 a.m. F J£? 5 _ 18ffi ™- ,„ XT 



Fig. 3 -Jan. 23, Noon. £' .^Au 'fi 8 ^ ° ^ " ^^ " SPOt - 



| i Jg. 0. isb5, Aug. 5, 8.20 a.m. A "grotesque" spot. 



