VI. GENERAL REMARKS ON CHARACTER AND RESULTS OF THE POLYTECHNIC SCHOOL, 84 APPENDIX, 88 PUBLIC SERVICES BESIDE THE ARMY SUPPLIED BY THIS SCHOOL, 88 1. Gunpowder and Saltpetre, 88 2. Navy, 88 3. Marine Artillery and Foundries, 88 4. Naval Architects. School of Application at L’Orient, 88 5. Hydrographers, 88 6. Roads and Bridges. School of Application at Paris, 89 7. Mining Engineers. School of Mines at Paris and St. Etienne, 89 8. Tobacco Department 90 9. Telegraphs, 90 PROGRAMMES OF INTERNAL INSTRUCTION DURING THE TWO YEARS OF STUDY, 91 1. Analysis, 91 First Year--Calculus, Differential, 91 Calculus, Integral, 93 Second Year--Calculus, Integral, (continuation,) 94 2. Descriptive Geometry and Stereotomy, 97 First Year--Descriptive Geometry, Geometrical Drawing, 97 Second Year--Stereotomy: Wood-work, 103 Masonry, 103 3. Mechanics and Machines, 104 First Year--Kinematics, 105 Equilibrium of Forces, 105 Second Year--Dynamics, 112 Hydrostatics, 115 Hydraulics, 115 Machines in Motion, 116 4. Physics, 116 First Year--General Properties of Bodies, Hydrostatics, Hydrodynamics, 117 Heat, 119 Statical Electricity, 123 Second Year--Dynamical Electricity, 124 Acoustics, 125 Optics, 126 5. Manipulations in Physics, 129 First and Second Year, 130