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Our system, in fact, is shaped something like a lens, and our sun is situated near the centre of this lens. In the remoter part of this lens, near its edge, or possibly outside it altogether, lies the great series of star clouds which make up the Milky Way. All the stars are in motion within this system, but the very remarkable discovery has been made that these motions are not entirely random. The great majority of the stars whose motions can be measured fall into two groups drifting past one another in opposite directions. The velocity of one stream relative to the other is about twenty-five miles per second. The stars forming these two groups are thoroughly well mixed; it is not a case of an inner stream going one way and an outer stream the other. But there are not quite as many stars going one way as the other. For every two stars in one stream there are three in the other. Now, as we have said, some eminent astronomers hold that the spiral nebulae are universes like our own, and if we look at the two photographs (Figs. 25 and 26) we see that these spirals present features which, in the light of what we have just said about our system, are very remarkable. The nebula in Coma Berenices is a spiral edge-on to us, and we see that it has precisely the lens-shaped middle and the general flattened shape that we have found in our own system. The nebula in Canes Venatici is a spiral facing towards us, and its shape irresistibly suggests motions along the spiral arms.

On January 23rd we descended rapidly through beautiful forest from Camp 71, where we had halted for the night, to a large _tambo_ called Enenas, in charge of an Italian. The place was situated in a beautiful valley intersected by a streamlet saturated with lime. It looked exactly like milk, and hurt your gums considerably when you drank it. The excellent mule I was riding had unfortunately hurt one of its legs while we were crossing a swollen torrent, where the mule and myself were nearly swept away in the foaming current. Riding on the lame animal, which was all the time stumbling and falling down on its knees, was unpleasant. In the narrow trail it was not possible to unload another animal and change the saddle, and it was out of the question for me to walk.

• Ted Waitt Gateway
• Ted Waitt Gateway
• Ted Waitt Gateway
• Ted Waitt Gateway
• Ted Waitt Gateway

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