John Munro 
A Trip to Venus [EPUB ebook] 

In plain English, at 4 a. m., a ray of light had been observed on the disc of the planet Mars in or near the ’terminator’; that is to say, the zone of twilight separating day from night. The news was doubly interesting to me, because a singular dream of ‘Sunrise in the Moon’ had quickened my imagination as to the wonders of the universe beyond our little globe, and because of a never-to-be-forgotten experience of mine with an aged astronomer several years ago…