Irving, [Christopher], d. 1856. [from old catalog], Ortmann, Anselm. [from old catalog] · Baltimore, Md., New York, J. Murphy company · leaf 60
dent on the inclination of theequator, must resemble the seasons here on earth. Q. 11. How does Mars appear when viewed with atelescope? A. Considerable detail of this planets features hasbeen observed with large telescopes. MARS. 48 Q. 12. Which are some of the objects viewed? A. The white polar… … Fig. 16. Telescopic Views of Mars. Q. 13. What interesting change is noticed in thepolar caps? A. The polar caps grow large when the respectivepole is turned away from the sun, and grow small oreven disappear altogether when, half a Martian yearlater, they are turned to the sun; in this manner…
Astronomy
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