For instance, M. Antoniadi, of Juvisy Observatory, near Paris, has published a very interesting account of his own observations with the fine Meudon refractor, which has an object glass 32.7 inches in diameter; and he has also furnished several beautifully executed drawings of what he has seen. The most noticeable new features observed were two large detached pieces of the south polar snow-cap, the altered shape of the Solis Lacus and other dark areas, numerous dark rounded spots on the dark areas, much detail along the lines of the canals, and the observation of scattered markings instead of lines.
M. Antoniadi lays great stress on the advantages of large telescopes; and, whilst making frank admission that the drawings of Professor Lowell show the outlines of the Martian details more accurately than the drawings of any other observer, he dissents entirely from his views respecting the actuality of the canal lines.
With regard to M. Antoniadi's observation of dark rounded spots, it has been suggested by another writer that these are volcanoes, and, moreover, that the canal lines are really cracks in the solid ice covering frozen oceans and seas. These contentions involve the supposition that Mars is still in the stage when volcanic action is prevalent, and also that what have hitherto been supposed to be desert lands are really fields of ice. Mars has passed far beyond the stage of volcanic activity; and the theory does not account for the ochre colour of the frozen oceans, which are exactly the same colour as our deserts appear when viewed from a great distance, for the sandstorms so frequently observed, nor for the general absence of any indications of frost over a large portion of the Martian surface. It is also very difficult to imagine the existence of a profuse growth of vegetation along cracks in solid ice; and I am afraid this theory, like many others, fails to fit in with the observed facts.
I may remind my readers that the Professor suggested that many more dark rounded spots would, under favourable conditions, be discovered on the dark areas of the planet, and he has stated what they are.
As a result of his recent observations, M. Antoniadi has boldly declared that the supposed canal lines are really separate spots and markings which, when seen with instruments of lesser power than the one he used, appear to be lines, the network of canal lines being an illusion. He contends that the markings he has seen are beyond the power of Professor Lowell's telescope to resolve, and that what he has seen forms an unanswerable objection to the canal theory and stops all discussion!
This argument has, however, been fully met in this book by anticipation; and, as will be seen later on, Professor Lowell completely refutes it and shows that M. Antoniadi is mistaken. It has also been pointed out that, if we could secure perfect seeing, the lines might really appear as separate markings, and that apparent breaks and irregularities are exactly what we might expect to find in connection with canals. I gather from a recent remark made by Professor Lowell that he also holds this view.
Moreover, a discreet silence is observed with regard to the progress of vegetation on Mars being from the poles towards the equator, instead of from the equator towards the poles, as is the case on our earth.
This mode of progression can only be accounted for by the flow of water from the poles, and such flow extending beyond the equator involves the artificial propulsion of the water, as the flow is contrary to gravitation.
Professor Lowell's statements as to this peculiar growth of the vegetation do not depend upon the results of a few casual observations, for he has given the matter most systematic and prolonged attention, and noted upon hundreds of charts the dates when the vegetation has first appeared in various places and latitudes after the passage of the water down the canals.