An essay on the nature and superior use of globes, in conveying the first principles of geography and astronomy to the minds of youth also a candid examination of the construction and use of planispheres, wherein the erroneous nature, and many bad consequences, attending the use of the vulgar projection are pointed out: and the nature and use of the globular projection, with many new improvements, illustrated by a solution of several problems, explaining the general principles of geography and astronomy, by way of introduction to the more ready use of globes