I couple these two words advisedly, for fifty years ago, pedagogics was a form of penology--the boarding-school with its mentors, scheme of fines, repressions and disgrace! And now we have lifted penology into the realm of pedagogics. I doubt me much whether the present penitentiary is a more unhappy place than a boys' English boarding-school was in the time of Squeers. All of our progress has come from replacing bad activities with the good. Bad people we now believe are good folks who have misdirected their energies; and we all believe a deal more in the goodness of the bad than the badness of the good, with the result that "total depravity" and "endless punishment" have been shamed out of every pulpit where sane men preach. No devils danced on the footboard of Herbert Spencer's bed, because there were no devil-cells in his brain. Another great discovery of Herbert Spencer's was that the emotions control the secretions. And the quality of the secretions determines the chemical changes which constitute all cellular growth. Thus, cheerful, happy emotions are similar to sunshine--they stand for health and harmony, and as such, are constructive. Good-will is sanitary; kindness is hygienic; friendship works for health. These happy emotions secrete a quality in the blood called anabolism, which is essentially vitalizing and life-producing. On the other hand, fear, hate, and all forms of unkindness evolve a toxin, katabolism, which tends to clog circulation, disturb digestion, congest the secretions and stupefy the senses; and it tends to the dissolution and destruction of life. All that saddens, embitters and disappoints produces this chemical change that makes for death. "A poison," said Spencer, "is only a concentrated form of hate." * * * * * Spencer's discoveries in electricity have been most valuable, and it was by building on his suggestions and seeing with his prophetic eye that the Crookes Tube, the Roentgen Ray, and the discovery of radium have become possible. The distinguishing feature of radium is its radioactivity, brought about through its affinity for electricity. It absorbs electricity from the atmosphere and gives it off spontaneously in the form of light and heat without appreciable loss of form or substance. Every good thing in life is dual, and through this natural and spontaneous marriage of radium and electricity, we get very close to the secret of life. As the sun is the giver of life and death, so by the use of the salts of radium have scientists vitalized certain forms of cell-life into growth and activity, and by the same token, and the use of the radium-ray, do they destroy the germs of disease.