378 



Original Articles. 



[July, 



Fig. 1. — Mars as seen on the 27th of September, 1862, and on several other occasions till the 

 13th December. Longitude 0». 



Fm. 2. — The appearance of Mars at longitude 90° with long oblique ridges south of the great 

 boundary and nearly or quite running into the northern band : here less broad than in Fig. 3. Seen 

 November 11th, 1832. 



