Medicine: Cancer Indicator

That the blood of cancerous people is less acid than the blood of normal people is well-known. A proper balance between hydrogen (acid) ions and hydroxyl (alkaline) ions is essential to health and normal cell growth. Too much alkalinity lets cells grow wild. That is one reason why radium and x-rays are used to treat cancer. They make blood acidulous. If doctors could easily and quickly tell the blood's hydrogen ion strength, they could use proper therapeutic means to prevent and treat cancer.

A machine to indicate just that has now been invented, the...