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LECTURE IV VISITS TO THE MOON AND PLANETS

may perhaps think that we take a long time getting started, seeing that we have spent three lectures out of six in discussing where we are to start from, in what we are to travel, how far we are to go, and so on. But I find that this is the method approved by my great predecessors as celestial guides. Jules Verne, you find, takes a whole book talking about the start; how the big gun is to be built capable of shooting people to the Moon; how, moreover, a big telescope is provided to watch them when 138