Fig. 11. Resonances (first derivative curve) of x-irradiated feather quill (of a 



goose) at 23 kMc for parallel and perpendicular orientation in the magnetic 



field. (From W. Gordy and H. Shields (8).) 



Fig. 12. Resonance (first derivative curve) of x-irradiated insulin observed at 

 23 kMc. (From W. Gordy and H. Shields (8).) 



