. The encyclopædia of geography: comprising a complete description of the earth, physical, statistical, civil, and political. ALF moon; that is, the disc is a semicircle. The enlightened part still continuing toincrease on the same side, the rectilineal boundary of the semicircular disc passes againmto an elliptic line, and the moon becomes gibbous, as at M: on all sides the disc is con-vex, though it does not become entirely full orbed until she reaches the point of opposition,at m, about the end of seven days from the time of half moon. From the instant of opposi-tion the moon begins to retu
. The encyclopædia of geography: comprising a complete description of the earth, physical, statistical, civil, and political. ALF moon; that is, the disc is a semicircle. The enlightened part still continuing toincrease on the same side, the rectilineal boundary of the semicircular disc passes againmto an elliptic line, and the moon becomes gibbous, as at M: on all sides the disc is con-vex, though it does not become entirely full orbed until she reaches the point of opposition,at m, about the end of seven days from the time of half moon. From the instant of opposi-tion the moon begins to return to the sun on the western side; and in her progress towardsthe conjunction she goes through the same series of changes in an inverted order, becomingfirst gibbous, as at m; then half moon at the time when she reaches the position m, hersecond quadrature; then a crescent, as at m, which, continually diminishing, at last dis-appears altogether. Thus, on the supposition that the moon is an opaque body and nearlyspherical, and that she revolves in an orbit round the earth, the phenomena of her phasesare easily Rook I. PHASES OF THE MOON. 99
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Keywords: ., bookcentury1800, bookdecade1840, bookpublisherphiladelphialeaand
