938 



BIOLOGICAL EFFECTS OF RADIATION 



A 1900 



2000 



2100 



2200 



2300 



2400 



2500A 



FiQ. 6. — Mitogenetic spectra. 1. Reduction of Cu" to Cu (electrochem.) (33). 

 2 Reduction of Zn" to Zn (electrochem.) (33). 3. Reduction of Hg" to Hg (electro- 

 chem.) (33). 4. Reaction, HCl + Zn. HCi + Cu. HCl + Mg, HCl + Al (33). 5a. 

 Reduction of Oz-^O" (OH) (electrochem.) (33). 56. H -> Hj (electrochem.) 

 (33). 6. Redox reaction. Fe2(S04)3 + FeSOi (electrochem.) (33). 7. Reaction. 

 KiCraO: + FeSO* (212). 8. Reaction. FeCU + NHjOH.HCI (212). 9. Reaction. 

 KMnO« + H2O2 (212). 10. Reaction. HgCIj + SnCh (212). 11. Reaction, HNO3 + 

 FeS04(-|-H2S04) (212). 12. Reaction. KCIO3 + Zn + NaOH (212). 13. Reaction. 

 Pt + H2OJ (212). 14. Reaction, KOH + pyrogallol (120). 15. Reaction, NaOH -\- HCl 

 (212). 16. Photosynthesis (212). 17. Glycolysis, spectrum from blood radiation (also 

 obtained from corneal epithelium) (152). 18. Phosphatase (action on phosphates) (126). 

 19. Breaking down of creatin phosphatase (34). 20. Protein digestion (18). 21. Reaction, 

 amylase with maltose (160). 22. Reaction, cane sugar with yeast saccharase (160). 

 23. Reaction, urea with urease (160). 24. From resting nerve (151). 25. From nerve 

 pulp (151). 26. Nerve mechanically stimulated (at point of stimulation) (151). 27. 

 Nerve electrically stimulated between electrodes (151). 28. Nerve, traumatic stimulus 

 about 20 mm. from the trauma (151). 29. Nerve, electric stimulus 20 mm. from electrodes 

 (151). 30. Nerve, conduction of stimulus (20 min.) (111). 31. Small brain (HI). 32. 

 Large brain (111). 33. Optic nerve (111). {Collected and supplied by Gurwitach.) 



