An Attempt to Measure the Free Electricity in the Sun's Atmosphere.

We have the strongest of reasons to infer the existence of free electricity in the sun. At high temperatures in the laboratory carbon and other elements emit great numbers of negatively charged partices, while friction, collision and exposure to ultra-violet light may be mentioned among various other agencies capable of producing free electrons under solar conditions. On the other hand, the presence of intense magnetic fields in sun-spots points to a marked preponderance of negative electrons whirling in the spot vortex. Thus, without adducing further evidence, we find that both laboratory results and solar phenomena indicate the presence of free electricity in various parts of the solar atmosphere.' The greater mobility of negative electrons and the influence of light pressure must cooperate to transfer negative electricity toward the upper levels of the atmosphere, thus leaving the body of the sun with