The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 205
455. What is the orbit of the earth called? What is theecliptic ? Why is it called the ecliptic ? What is the zodiac ? Why is it calledthe zodiac? What are the names of the twelve constellations > How many de-gree! does each sign contain ? 456. Are the orbits of the other planets in thename… … part of each orbit which is above the plane is shown by a whiteline; that which is below it, by a dark line. That part of the orbit What does fig. 134 represent ? ASTRONOMY. 195 of each planet the white and of the planet. Fig. 135.
Physics
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