Mars, as seen on 1892 August 22 in a 3-inch achromatic telescope. Sketch by Andrew Elvins.

Mars. Sketches by Andrew Elvins.

Mars as seen in 1892. Sketch by Andrew Elvins.

Mars as seen in 1892. Sketch by Andrew Elvins.

Mars on 1892 August 4 as seen in a 3-inch Achomatic telescope. Sketch by Andrew Elvins.

Mars as seen on 1892 August 2 in Mr. Lumsden's 10-inch reflector. Sketch by Andrew Elvins.

Mars. Sketch by Andrew Elvins, sometime between 1868 and 1899.

Mars in 1884. Sketches by Allan F. Miller. 4-inch Wray Achromat - Power 200 (A.F. Miller's telescope).

Left: Feb 20th - 9h
Right: Mar 3rd - 11h.30m