Beppicker—WNotes on the Aspect of the Planet Mars. 303 
Plate VI., Fig. 6.—1884, March 10. L=187°8. Power, 144. 
Very clear. Exceedingly difficult, yet the spots on the whole correct. 
Particularly reliable is the white curve across the disc, which is very 
bright, and the white separation of the blue northern shading from the 
dark central spot. North pole very bright. The dusky cross-streak, 
south prec. very difficult. 
I am unable to identify satisfactorily any of the markings on this drawing, 
except perhaps the south prec. streak, with the canal connecting Sinus Aonius with 
Mare Sirenum. Indeed, I should not consider this sketch worth publishing, if I 
was not convinced that at the time of drawing I thought it a pretty good repre- 
sentation of what Isaw. A comparison with other drawings obtained about the 
same period must decide whether any and how much reliance may be put on my 
sketch. 
Plate VI., Fig. 7.—1884, April 2—1. L=261°8. Power, 144. 
Much wind (8. E., 3-4). Thickly hazy ; but image very steady, and full 
of detail. The south prec. spot surprisingly dark, also the northern 
spot. Both are visible as sharp black points, when the whole planet is 
very dim. The following southern spot lighter. 
Plate VI., Fig. 8.—1884, April 2—2. L= 267°:4. Power, 144. 
Clearcr at times. The following southern spot much darker, as dark as the 
south prec. and the northern ones. Syrtis Major not perceived during 
the first sketch. 
The difference of longitude between these drawings is so small, that they ought 
to show very nearly the same features throughout. So we perceive on both Mare 
Cimmerium, the Peninsula Hesperia, and Syrtis Minor; and it is surprising that 
Syrtis Major is visible on the second sketch only, as it, doubtless, should be so on 
the first sketch also. Altogether it appears as if the following half of the planet’s 
dise got clearer and more distinct during the time between the two sketches, as is 
particularly indicated by the darkening of Syrtis Minor. The dark northern 
spot appears on Schiaparelli’s chart of 1879 as Alcyonius Sinus, but neither then 
nor during my observations in 1881 did it appear so dark. The preceding 
dark shading connecting Mare Cimmerium with the northern spot is the canal 
Cyclopum. - 
Plate VI., Fig. 9.—1884, April 1—1. L=279°-4. Power, 144. 
Clear, but exceedingly difficult. Interrupted by clouds. Sketch on the 
whole correct. North pole very bright indeed. Division in southern 
spot rather difficult, yet distinctly seen. 
