ISBN: 1451020082

[SR: 6657100], Paperback, [EAN: 9781451020083], Forgotten Books, Forgotten Books, Book, [PU: Forgotten Books], Forgotten Books, PREFACE. THIS small volume was commenced as a review articl… mais…

[SR: 6657100], Paperback, [EAN: 9781451020083], Forgotten Books, Forgotten Books, Book, [PU: Forgotten Books], Forgotten Books, PREFACE. THIS small volume was commenced as a review article on Professor Percival Lowell's book, Mars and its Canals, wi th the object of showing that the large amount of new and interesting facts contained in this work did not invalidate the conclusion I had reached in 1902, and stated in my book on Man's Place in th~ Universe, that Mars was not habitable. But the more complete presentation of the opposite view in the volume now under discussion required a more detailed examination of the various physical problems involved, and as the subject is one of great, popular, as well as scientific interest, I determined to undertake the task. This was rendered the more necessary by the fact that in July last Professor Lowell published in the Philosophical Magazine an elaborate mathematical article claiming to demonstrate that, nQtwithstanding its much greater distance from the sun and its excessively thin atmosphere, Mars possessed a climate on the average equal to thTable of Contents EARLY OBSERVERS OF MARS, I; Mars the only planet the surface of which is distinctly; visible-Early observation of the snow-caps and seasThe; 'canals' seen by Schiaparelli in I877-Double; canals first seen in I88I-Round spots at intersection; of canals seen by Pickering in I892-Confirmed by; Lowell in I 894--Changes of colour seen in 1892 and; 1894--Existence of seas doubted by Pickering and; Barnard in 1894; CHAPTER II; MR LOWELL'S DISCOVERIES AND THEORIES, 7; Observatory at Flagstaff, Arizona-Illustrated book on; his observations of Mars-Volume on Mars and its; canals, 1906-Non-natural features-The canals as; irrigation works of an intelligent race-A challenge to; the thinking world-The canals as described and; mapped by Mr Lowell-The double callaIs-Dimensions; of the canals-They cross the supposed seasCircular; black spots termed oas, 13443, Astronomy, 13439, Astronomy & Space Science, 75, Science & Math, 1000, Subjects, 283155, Books, 13451, Mars, 13439, Astronomy & Space Science, 75, Science & Math, 1000, Subjects, 283155, Books<

ISBN: 1451020082

PREFACE. THIS small volume was commenced as a review article on Professor Percival Lowell's book, Mars and its Canals, wi th the object of showing that the large amount of new and interes… mais…

PREFACE. THIS small volume was commenced as a review article on Professor Percival Lowell's book, Mars and its Canals, wi th the object of showing that the large amount of new and interesting facts contained in this work did not invalidate the conclusion I had reached in 1902, and stated in my book on Man's Place in th~ Universe, that Mars was not habitable. But the more complete presentation of the opposite view in the volume now under discussion required a more detailed examination of the various physical problems involved, and as the subject is one of great, popular, as well as scientific interest, I determined to undertake the task. This was rendered the more necessary by the fact that in July last Professor Lowell published in the Philosophical Magazine an elaborate mathematical article claiming to demonstrate that, nQtwithstanding its much greater distance from the sun and its excessively thin atmosphere, Mars possessed a climate on the average equal to thTable of Contents EARLY OBSERVERS OF MARS, I; Mars the only planet the surface of which is distinctly; visible-Early observation of the snow-caps and seasThe; 'canals' seen by Schiaparelli in I877-Double; canals first seen in I88I-Round spots at intersection; of canals seen by Pickering in I892-Confirmed by; Lowell in I 894--Changes of colour seen in 1892 and; 1894--Existence of seas doubted by Pickering and; Barnard in 1894; CHAPTER II; MR LOWELL'S DISCOVERIES AND THEORIES, 7; Observatory at Fla used books,books Books, Forgotten Books<