The book The Trouvelot Astronomical Drawings Manual was written by author Trouvelot Tienne Lopold 1827 Here you can read free online of The Trouvelot Astronomical Drawings Manual book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Trouvelot Astronomical Drawings Manual a good or bad book?
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Is this planet, which is certainly constituted very nearly like our' 72 THE JROUVELOT globe, and seems so nearly fitted for the wants of the human race, inhabited by animals and intelligent beings ? To answer this question, either in the negative or in the affirma- tive, would be to step out of the pure province of science, and enter the boundless domain of speculation, since no observer has ever seen anything indicating that animal life exists on Mars, or on any other planet or satellite. So f...ar as observation goes. Mars seems to be a planet well suited to sustain animal life, and we may reason from analogy that if animal life can exist at all outside of the Earth, Mars must have its flora and fauna ; it must have its fishes and birds, its mammalia and men ; although all these living beings must inevita- bly be very different in appearance from their representatives on the Earth, as can easily be imagined from the differences existing be- tween the two planets. Although all this is possible, and even very probable, yet it must be remembered that we have not the slightest evidence that it is so ; and until we have acquired this evidence, we may only provisionally accept this idea as a pleasing hypothesis, which, after all, may be wrong and totally unfounded.
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