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 been looking over the little Book you recommended to me, Sir, said she, which I think is very plain and concise, and I fancy I am now got to be such a Proficient, as that I am qualified to go thro' the Problems, as the Book calls them, tho' what that Word signifies I don't understand.

Greek Word, Madam, said I, signifies something to be done or practised, and I question not but you have so well considered this Affair, as to be able to work or perform any of these Problems upon the Globes your self.

know that, said she, but I'm resolv'd to try, and with a little of your Help, perhaps, I may get thro' them: Come, pray, let's begin; and, first, shew me how to rectify each Globe, as he calls it, and what I shall learn by that.

Rectifying the Globes, Madam, said I, is reducing them to such a Position, as that they shall truly represent the Situation of the Circles of the Sphere of the fixed Stars and Planets; and of the Position of the Earth itself at any Time assigned.