_Lecture_ 2.--Distribution of buildings. Considerations that should have weight in the distribution. Number composing the edifice. Circumstances that guide in the disposal of masses. Conditions that should be satisfied in placing a building. Locality and suitable dimensions. Relations that should exist between them. Interior and exterior communications. Stories on the same floor. Position of the large rooms. Separation of the rooms. Position and arrangement of staircases. Verification of stability. _Lecture_ 3.--Conditions to be fulfilled in the distribution of the principal military establishments. Arsenals. Polygons for drill. Military establishments to the School of Bridges. _Lecture_ 4.--Foundries. Manufacture of arms. _Lecture_ 5.--Refining saltpetre. Powder. Powder magazines. Details relative to the construction of lightning conductors. _Lecture_ 6.--Infantry and cavalry barracks. _Lecture_ 7.--Hospitals. Military prisons and penitentiaries. _Lecture_ 8.--Storehouse for corn. Store-pits. Storehouse for fodder. Preserving houses. _Lecture_ 9.--Cisterns. Filtration. _Lecture_ 10.--Military tribunals. Guard-house. Gates of cities. Hotels and dwelling-houses. Officers’ quarters. _Lecture_ 11.--Preparatory to the execution of a project for a building. Method of proceeding. Composition of the sketch; approximate surface of all the locality; separation into symmetrical groups in the case of several buildings; number of stories; surface of the ground floor; length and breadth of the building between its walls; distribution of each story; verification of the relation between the stories. Elevation of the building. Sketches. Memoir. General details, and details of execution. _Lecture_ 12.--Discussion before the abstraction of the measurements and the preparation of the estimate of the building. THIRD PART.--FIRST SECTION: ON THE RESISTANCE OF MATERIALS. 1. Resistance of prismatic bodies to extension and compression. Elasticity of bodies. Modulus of elasticity. Limits of permanent efforts. Resistance to extension and compression of stone, bricks, and analogous materials; also of wood and metals. Applications. 2. Transverse resistance. Some cases in which it is brought into play. Results of experience. Resistance of bodies submitted to the effects of transversal flexure. Results of experience and conventions. Conditions of equilibrium of bodies submitted to efforts directly transversal to their length. Direction and value of molecular efforts. Equation of the axis of the body. Equation of the squaring. Discussion of these equations. 3. Geometrical method for determining the inertia. Application to the research for the inertia of various sections. Applications of general equations of equilibrium and of squaring to straight pieces. 1st. A horizontal piece set in a frame at one extremity, and subjected to a weight acting at the other extremity, with a uniform vertical effect.