v. I. Arithmetic. Algebra. Logarithms. Geometry a nd trigonometry. Elementary mechanics. Hydromechanics. Pneumatics. Strength of materials.--v. 2. Surveying. La nd surveying. Mapping. Railroad location. Railroad construction. Track wo r k. Railroad structures.--v. 3. Mechanical drawing.--v. 4. Tables a nd fo r mulas.--v. 5. Answers to questions