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ADVERTISEMENT.
This second volume completes the first part of the work. Considerable additions have been made to it in the notes, for the purpose of introducing the late improvements in the calculation of the attractions of spheroids, and in the determination of the figure of the earth. The third volume, being the commencement of the second part of the work, will be put to press immediately, and will require for its completion, about the same time as the preceding. The two remaining volumes will follow at similar intervals.
