Astronomers Beleive Some Observers Have Been Romancing. [New York Times.] Profs. Rees and Jacoby and Charlés Post read papers last night at the monthly meet ing of the Section of Astronomy and Phy sics of the New York Academy of Sciences, at Columbia College. They attacked the alleged discoveries of lines and canals on the planet Mars, their arguments being directed chiefly against Percival Lowell, of Boston, who, while at Flagstaff, Arizona, said he had seen the same lines and canals on the planet that had been discovered by Sig. Schiaparelli, in Italy. After the reading there was a general dis cussion, and the conclusion arrived at was that the gentlemen named are romancers, and not true astronomers, that they had led themselves to believe that there were canals and lines on Mars, and, because they believed so, they saw them. The speakers argued that if what these men allege they saw really existed, it was more than strange that none of the other famous scientists had been able to discover them, even with the most improved telescopes.