28.(Pg. [112]) How does the rotation of the earth upon its axis, govern the time at different places?
29.(Pg. [113]) What two circumstances, if known, will enable you to find your longitude from a given place?
30.(Pg. [113]) By what means may a captain find the time at London, and in the place where his ship may be?
31.(Pg. [113]) How may the eclipses of Jupiter's satellites be used to find the longitude?
32.(Pg. [113]) Give an example.
33.(Pg. [114]) How will you know whether the longitude is east or west?
34.(Pg. [114]) What is meant by the transit of a planet?
35.(Pg. [114]) Why can we see transits of Venus and Mercury only?
36.(Pg. [114]) By what are tides caused?
37.(Pg. [114]) Why is not a similar effect produced on the land?