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Boilers.-General description and nomenclature of parts of a typical naval shell boiler, and tubulous boilers; combustion and firing of fuels; heating value of fuels; heat losses and boiler efficiency; kinds of fuel; method of burning and experiments with liquid fuel; automatic stokers; bunkers; coaling ship; natural and forced draft systems; arrangement of boilers in ships; details of various forms of naval shell and tubulous boilers; details of the various boiler. fittings and appurtenances; steam pipes, valves, and fittings; details of construction of boilers; repairs; corrosion and preservation; United States Navy regulations for care and management; tests and installation.

Experimental engineering.-Instruments for the measurement and recording of experimental data. The slide rule; different forms of slide rule; the omnimeter; Sperry's pocket calculator; Thacher's instrument; Fuller's instrument; Coffin's averaging instrument; the Amsler polar planimeter; standard measuring machine; the Pratt and Whitney measuring machine. Measurement of pressure and temperature; pressure and vacuum gauges; the Bourdon gauge; compound gauge; recording pressure gauge; testing, pressure gauges; vacuum gauges; testing gauges on board ship. Manometers; measurement of temperature; high temperature mercury thermometer; air thermometer; pyrometers; the thermoelectric pyrometer; the platinum thermometer. Measurement of the quality of steam; throttling, superheating, separating, and barrel calorimeters. The entropy of steam; temperature-entropy diagram. Measurement of the heating values of fuel; Mahler's and Parr calorimeters; anthracite and bituminous coal; coke and oil fuels. Measurement of power; indicated, brake, and torsion horsepower. Calibration of indicator springs; mean pressure indicator; rippers. Ripper's power board. Torsion meters; Denny-Johnson and flashlight. Stress-strain diagram; testing machine; torsion, tension, cross breaking, compression, shearing. Cement testing; use of cement on board ship. Testing of lubricants; viscosimeters, gumming or drying, flash test, open cup, oil-testing machines, Navy Department methods, test of oil on board ship. Explosion engines; types of ignition devices, speed regulation, starting devices, valve gears. Gaseous fuels; gas producers, suction, and pressure. Producers for

marine use. Oil engines; gasoline, kerosene, crude oil; carbureters; atomizers. Engine tests; practical operation and management of explosion engines; boiler trial, for power, fuel burned, water evaporated, temperatures, quality of steam, using the forms, and filling out all columns as required in the boiler tests under the Bureau of Steam Engineering.

Boiler design.-Determination of boiler power for given speed of ship; principles and methods of procedure in design and proportioning of parts; application to a design in the drawing

room.

Engineering materials and designing.-Materials used in machine construction; physical properties and strength of materials; testing materials; the straining actions to which machines are subjected; resistance of structures to different kinds of straining actions; riveted joints; bolts, nuts, keys, and cotters; journals, crank pins, pivot and collar bearings; axles, shafts, and shaft couplings; bearings for rotating pieces; problems in design and strength of parts. Principles and considerations governing the powering of ships, and the designs, proportions, drawings, and specifications of the parts of engines, including cylinders, valves, pistons, crossheads, connecting rods, crank shafts, theory and diagrams of crank effort, shafting, and couplings, screw propellers, with practical application in the designing room, embodying the principles and methods used in the Bureau of Steam Engineering.

Naval construction.-Application of Simpson's rules; displacement; tons per inch immersion; areas of midship section; coefficients of fineness; center of gravity; center of buoyancy; sheer drawing; displacement sheet; conditions of equilibrium; transverse metacenter; transverse BM; metacentric diagram, including experiment; effect of free water in hold; longitudinal metacenter; longitudinal BM; change of trim, statical stability; curves of stability; dynamical stability; calculations of weights and for center of gravity; resistance of ships; law of comparison; powering ships. Strains experienced by ships; oscillations in still water; deep-sea waves; oscillations of ships among waves; bilge keels; observations of rolling and pitching motions; model-tank experiments.

Steel shipbuilding.-Office of the parts of a ship's hull; local and structural strength; materials of construction; genera!

forms of ships; subdivision by decks and bulkheads; double bottom; general framing; openings in sides and decks; materials and modes of fastening; tests and inspection of material; ship plans and reproduction in mold loft; classification of ships; keels and framing; stems and sternposts; plating and planking; composite and sheathed ships; protection against gun attack; protective decks; armor; cellular subdivision; water-excluding materials; water-tight subdivision; system of numbering compartments; drainage, flooding, pumping, flushing, and ventilating systems; corrosion of iron and steel ships; United States Navy Regulations for care and preservation of steel ships.

Models, machines, boilers, and apparatus.-These are used in instruction as much as possible. In some branches half of the recitation periods are utilized in this manner.

PRACTICAL INSTRUCTION.

Pattern shop.-Selection and treatment of different woods for different purposes; the use of hand and power tools in carpentry, wood turning, and pattern making, sawing, planing, chiseling, chamfering, grooving, framing, tenoning, mortising, miter and dovetail joints, paneling; center and chuck turning. Elementary work of the carpenter shop up to finished pattern work. Foundry.-Tools, flasks, sands, green sand and loaming molding, core making; melting and pouring brass and iron; the making of bronzes, alloys, etc.

Blacksmith shop. The use of tools in iron and steel forging; heating, drawing, bending, forming, upsetting, welding, shrinking, tool making, tempering, annealing, case hardening; bending and quenching tests of metals; thermit welding; steam hammer; coal and gas forges.

Coppersmith shop.—Making and repairing copper pipe; fitting flanges on pipes; sweating patches; soldering and brazing, etc.

Boiler shop.-The use of tools in plate working and boiler making; chipping, calking, soft and hard patching, riveting; expanding and beading tubes; annealing; fitting stay tubes, screw stays, and braces; testing; pneumatic calker and chipper; coal and oil forges; punches, shears, rollers, etc.

Machine shop.-Vise work in cast iron, wrought iron, and brass; chipping, filing, surface filing, squaring, fitting, scraping, and finishing. Use of tools and hand processes; marking off,

fitting, and finishing tools; surface plates and tables; ratchets and drills; reamers; taps and dies; pipe fitters' tools and pipe fitting. Lathe work in iron, steel, and brass; centering; facing; parallel and taper turning; right and left, single and double thread cutting; boring and inside threading; boring and fitting to straight and taper mandrels; chucking. Machine tool work in iron, steel, and brass, with drill press, planer, shaper, slotter, milling machine, boring machine, pipe cutter, threading machine, metal band saw, metal saw, power hack saw, pneumatic drills, electric drills, and grinders.

Laboratories.-Use of slide rule, averaging machines, apparatus for testing oil and smoke gases; centering engines and valve setting; measurement of cylinder and piston clearances; measurement of wear of brasses and bearings; grinding in and reseating valves; measurement of pitch of screw propellers; practice in taking indicator cards and calculations; use of Coffin's averaging instrument; calibration of indicator springs; correction of indicator cards; testing and adjusting spring pressure gauges; lubrication and lubricating systems; steam and water packings; metallic packings; gaskets. Principles of various steam traps. Boiler test; use of pyrometers; running of explosive engines; torsion meters; steam turbines; pulsometer; pneumatic and hydraulic machinery; water meters, weir; ice machines; power measuring by indicator and dynamometer; metal and cement testing; fuel and steam calorimetric tests; fire-room timing device; distilling plant; traps; hydraulic ram; air compressors; long arm doors; steering and anchor engines; docking ship by two methods; etc.

Summer drills.-Descriptive lectures in elementary marine engineering, with models and machinery of launches. Operation of machinery of steam launches, timing and feeding boiler and running of engine, together with the study of the models of this machinery in the department.

Practice ships.-Engineering duties on board ship; care, preservation, and management of machinery and boilers, examining, adjusting, and repairing; dismantling and assembling a naval engine; management of main and auxiliary engines; fire room and engine room routine, firing, water tending, and oiling; management of engines while maneuvering at sea; determining the condition and locating defects in machinery while in motion;

lying under banked fires; coming to anchor; overhauling machinery; cleaning boilers and condensers. Practice in taking indicator cards and calculations; use of Coffin's averaging instrument; steam and water packing; metallic packing; gaskets; paint, and painting. Principles and operations of various pumps; dismantling and assembling pumps; principles of various steam traps; water hammer and drainage; coaling ships; estimating and measuring coal; wet coal; spontaneous combustion; banked fires vs. thin-spread fires; coal endurance of ships; tests of coal; refrigerating machinery; principles and operation of the Allen dense-air ice machine. Evaporators. Log book and reports.

DEPARTMENT OF MATHEMATICS AND MECHANICS.

Algebra.-Fundamental operations; reduction and conversion of fractional and surd quantities; reduction and solution of equations of the first and second degrees; inequalities; involution and evolution; development of algebraic functions by means of indeterminate coefficients and the binominal theorem; permutations and combinations; summation of series; continued fractions; logarithms; exponential equations; theory of equations, including the solution of numerical equations.

Geometry.-Geometry of the straight line, of the circle, and of the plane; theory of proportion; properties of similar figures; spherical geometry; the cone and the cylinder; mensuration of rectilinear figures, and of the sphere, cone, and cylinder; application of algebra to determinate geometry.

Trigonometry.-Measures of arcs and angles; trigonometric functions; analytical investigation of trigonometric formulæ, with their application to all the cases of plane and spherical triangles; construction and use of trigonometric tables; inverse trigonometric functions; De Moivre's theorem; solution of trigonometric equations; practical applications of trigonometry to the solution of plane and spherical triangles, the astronomical triangle, and the measurements of heights and distances.

Analytical geometry.-Equations of the straight line and of the conic sections; transformation of coordinates; properties of the conic sections; equations to tangents and normals; determination of loci; discussion of the general equation of the second degree; equations of the plane, of lines in space, and of sur

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