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Show part, the temperature of all temperate rones would rise higher than any toftfd zone and make the greater part of the world uninhabitable. These studies directed ray attention to the great practical importance of studying study-ing the action of our own terrestrial atmosphere at-mosphere on the san, and the antecedent probability that our own air was also, and independently having the effect of making a really blue sunshine and sun appear as white when it should be of a cerulean hue. St. Louis Republic- I the San Blaet One of the shining lights of astronomical astronom-ical science has this to say in regard to the color of the sun: : It may be asked: "What suggests the idea that the sun is bluer My own attention at-tention was directed this way many years ago, when measuring the heat and light from different part of the sun's disk. It is known that the sun has an atmosphere of its own, which tempers its heat, and, by cutting off Certain radiations radi-ations and not others, produces the spectral spec-tral lines with which we are so familiar. These lines we usually 6tudy in connection connec-tion with tiie absorbing vapors of sodium, sodi-um, iron, etc., which produce them; but my own attention was particularly given to the regions of abs-ption, or to the color it caused, ' In these investigation I found that the gun' body most be of a deep bluish color, and that it would shed deep blue light, except for the solar atmosphere, which is usually spoken of a being colorless, color-less, but which really plays the part of a reddish veil, letting a little of the blue appear on the center of the sun's disk, where it ii the thinnest, and stuining the edge red 80 a to appear to a delicate test as being a pale aqua marine in the center and a deep garnet around the edge. The effect I found to be so important that, were this all but invisible solar at-tncBohera at-tncBohera .diminiriu! odIt hw third |