17. Who was "Parallax"? Give a brief sketch of his career.

18. Give example of "meridian altitude of a celestial object," by

drawing a picture of the Chinese giant who was over here some time ago.

19. Give history of "the Poles." Who was Kosciusko? Is this spelling of

his name correct?

Mr. Punch Afloat: The Humours of Boating and Sailing · 第 49 / 84 题