54 PHOTOGRAPHIC FACTS AND FORMULAS 
For 30° N.; Southern China, Southern United States, 
Northern Mexico, Northern Africa, Arabia, and Northern 
India. 
PANO viens tae May . Apr.)) Mars ihebs) haa 
MM June July “Aug: Sept.) Oct (Nev ie 
12 y% 0 0 0 0 a 
| 0 0 0 0 0 ARE | 
BO 82 0 0 0 0 y% 1 i! 
DH hiiid 0 0 yy Ove 1% 2 
8 4 yY 1 Ly ee 2% 3 
Aas 14) 2 2Ye) hi + 3 
SIN 0) 3 4 6 
Dec. Nov. Oct. Sept. Aug: jai ae 
Jan. ‘Feb. Mar. Apr: tie 
For 30° S.; Southern Australia, Northern Argentina, Cape 
Colony, and Uruguay. 
For 23° N.; India, Mexico, Southern Egypt, ‘Central 
Arabia, Cuba, and Northern West Indies. 
72 ME May \Aprt..:Mar. | Feb. jam 
M M June July Aug. Sept. Oct.) Mayes 
12 ve YY Y% 0 0 0 4 
Da sid 0 0 0 0 0 14 % 
LO} 12 0 0 0 0 yy eM 
EUAN: 7 y, y% 1 1 1 ly 
8 4 1 1 1 1% 1% 2 2% 
AO 2 ys 2% 3 3% 4 7 
By), 3 4 6 
Dec. Nov. Oct. ‘Sept. Aug. Jily jaa 
Jan.) Heb. Mar. Apr. May 
For 23° S.; Northern Australia, Northern Chile, Bolivia, 
Madagascar, Rio Janeiro, and Transvaal. 
