FIG. 14. HEAD OF THE 75-Foor SPECTOGRAPH OF THE i5o-rooT TOWER TELESCOPE. 



890' 



Equator 



N 9 o c 



FIG. 15. The curve represents the theoretical variation of the displacements 

 of spectrum lines with the heliographic latitude. The sun is assumed to be a 

 magnetized sphere with its magnetic poles coinciding with the poles of rotation. 

 The points represent mean values of the observed displacements. Vertical 

 scale: i square = o.ooi mm. ^0.0002 Angstrom. 





