One thing we have learned is that these screens operate by the power known to us as atomic, plus something else that we have not been told. The mysterious part of all of this, in our total adventure from the Earth to Venus we have found that space is dark and the only light that can be seen is the dust that catches the days and reflects them as light for a split second. One moment they are light, the next moment they are dark. When the flat side of a particle is towards either reflected light or the direct light of the sun, it reflects light, but when the edge is towards either one, no light is reflected. You can imagine just how this really operates. "Yet there are dust clouds which are pretty dense that reflect light quite steadily, you might say, due to their closer concentration, but if you watch it closely, especially with the aid of a good instrument, there will be times that you will see this reflection very bright while at other times quite dull," continued our friend. "The reason for this is that the particles keep moving, rolling, so to speak, sometimes a larger mass of them comes into a position to catch the light and reflect it, while at other times a lesser amount of them reflects it. The Milky Way is composed largely of such." "Now again let us emphasize, each particle of dust either independent or composing a cloud, is composed of all minerals known to man on Earth and some minerals not known to him, in a very minute form. And they do reflect their own mineral contents, especially when they are quite well condensed in a massive formation, as we have said before. Being in space between two bodies, if these were to be ignored, they would cause much misunderstanding when it came to analyzing the contents of a planet, even so far as to it being inhabited." "Right here we should try to prove something else as we are travelling towards the Moon. Now we will focus a screen towards the Earth. This is being done without the filtering system. Here is your Earth. It contains all minerals. We will read for you the various minerals which are showing here on the screen." This they did. "Yet here are five minerals showing that are not found on your Earth. Now we are going to put the filter system in to filter out the dust particles and get a pure reading of the Earth. Here is your exact number of minerals." And that was true, less the five minerals that showed before. That reading was correct as far as Dr. Johnston was concerned. "We shall show you something more. By a special device operated in conjunction with this screen we can detect and differentiate between all form-life, be it mineral, vegetable, animal, fowl, or human and even tell its degree of development."