Some Observations on Vitamins A and D Activation of Yeast by X-Ray and Other Radiation.

Abstract

Conclusion

The Cooper-Hewitt lamp, quartz light and x-ray in low voltage cause an activation of the vitamin D and the vitamin A in yeast fed to rats along with a deficient vitamin D and vitamin A ration. The period of exposure of the light in each case varies with the type of light used. The maximum point of activation is found with each light.