&AllPage.PageTitle; : The young geometrician's companion; being A new and comprehensive course of practical geometry ... Containing, I. An easy introduction to decimal arithmetic ... II. Such definitions, axioms, problems, theorems, and characters, as necessarily lead to the knowledge of this science. III. Planometry, or the mensuration of superficies. IV. Stereometry, ot he mensuration of solids. V. The sections of a cone ... VI. The Platonic bodies ... To which is added a collection of problems shewing that lines and angles may be divided in infinitum; that superficies and solids may be so cut as to appear considerably augmented; and, that the famous problem of Archimedes, of moving the earth, is capable of an easy and accurate demonstration.