FIG. 2. MINUTE STRUCTURE OF PHOTOSPHERE AND SUN-SPOTS 
(LANGLEY) SCALE: SUN'S DIAMETER = 94 CM. {Amer. J. Sci., 187i) 
FIG. 5. STEREOSCOPIC PHOTOGRAPH OF HYDROGEN [Ha) FLOCCULI, 1915, AUG. 7, 6^ 26™ AND 
6^ 19"! A.M., P.S.T. SCALE: SUN'S DIAMETER=24 CM. (Fig. 5 is a negative reproduction) 
