Word: quartz
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Some months ago, Prof. Adolf Miethe of the Charlottenburg Technical College, Berlin, was experimenting to determine the effect of violet electric rays upon mercury vapor. Using a quartz lamp, a current of about 170 volts and a low amperage and about half an ounce of mercury vapor, he was surprised to find, after about 200 hours of operation, that the mechanism was out of order. He opened the lamp and found that the inside was coated with a thin, black film. Scraping off some of the film, he analysed it and discovered it to be gold. The experiment was repeated...
...years with ethylene, has yet shown no ill effects. An instrument was exhibited which has power to make visible the vital essence of man's life in the form of a thin flame shaking upon a thread. The electricity generated by the heart is carried to a silver quartz thread hanging in a magnetic field. As the heart strikes in and out, this faint fire shakes and shakes in the silver cord-patent to man, as it was of old to Atropos* Dr. Charles H. Mayo of Minnesota warned laconically: "Americans eat too much." Officers elected: Dr. Rudolph Matas...
...Little of the University of Maine and Dr. W. T. Bovie, Professor of Biophysics at Harvard Medical School, have discovered a cure for rickets. The cure consists of a violet ray treatment, wherein the subject is exposed to ultraviolet rays projected by a Cooper-Hewitt lamp through a fused quartz window. Chickens?a kind of fowl peculiarly susceptible to rickets?have been experimented upon with a success which definitely establishes the cure...
Chickens. Subjected to ordinary sunlight, chickens prospered; left in the dark, they developed rickets and died. Exposed to rays from the quartz window, they grew faster than normally ; their bones became very stout, sometimes so stout that their growth was a positive menace. In a few weeks, by continued use of the rays, it was found possible to develop fabulously succulent small fowls?"superbroilers." When the milk and celery which fed them had been treated with the rays, they thrived better than those whose food had not been so treated...
...Significance. The treatment has not as yet been used on rickety (Continued on Page 20) children; but preparations have been made for so doing. In the solarium at Johns Hopkins Hospital, Baltimore, a large window of fused quartz has been installed for use in child cases; and similar work is going on elsewhere. This quartz is, however, expensive. Until facilities are greatly expanded, the treatment must remain what it is?a cure for a limited number, not a widespread means of promoting the general health of children, stimulating growth and obviating the bone-troubles of the race. So used...