+Keelson? Where—why?+ +Knighthead frame?+ +Lapped joints?+ +Launching—how done?+ +Limbers—limber boards?+ +Lloyd's—register—rules?+ +Load line?+ +Longitudinal bulkheads—framing?+ +Manholes—where—why?+ +Margin plates?+ +Masts—caps—coats—holes—partners—steps—stiffeners—telescopic— wedges? Bending forces—Buckling—failure—material—painting interior—rake—strength of?+ +Natural draft?+ +Neutral axis of a beam?+ +Oil fuel—flash point?+ +Oxy-acetylene blow pipe—how used?+ +Paints—what kind used aboard ship—how mixed? Where stowed— How much used? What surface will gallon cover? How long in applying?+ +Panting—what is it—have you noticed it at sea, etc.?+ +Peak tanks—fore peak—what stowed there?+ +Pillars—stations, etc? Their function?+ +Pintles?+ +Plating—how thick—how joined?+ +Portland cement—same as hydraulic—what uses?+ +Pratigue—what is it?+ +Propellers—how many—what kind—pitch—motion?+ +Pressure—steam—in deck lines—main boilers—donkey boilers—water pressure—under bottom?+ +Pumps—where are hand pumps—what will they throw—do they work?+ +Quadrant tiller—how connected to steering engine?+ +Red lead—use of?+ +Relieving tackles for steering gear—how rove?+ +Rigging—chain plates—screws—spread of—strength of?+ +Rivets—in what kind of shear? Pitch—strength?+ +Rolling chocks (bilge keels)?+ +Rudder—angle of—balanced, or not—cross head—how supported?+ +Sanitary tanks—where located—how filled?+ +Scuppers where located? Are those on deck house tops clear?+ +Scantlings—what do they include?+ +Shaft—bearings—stools—tube—tunnel?+ +Sheathing—wood—copper?+ +Sheer?+ +Shell plating?+ +Skylights?+ +Sounding pipes—rods—how marked—how used?+ +Spar deck?+ +Sponsons?+ +Steel strength of—tensile—shearing—compressive?+ +Stem?+ +Steering gear—learn all about it.+ +Stem—ordinary—cruiser?+ +Stoke holds (fire rooms)?+ +Stress?+ +Strain?+ +Stringers? Duty of?+ +Surveys—purpose—by whom?+ +Sweating—cork paint?+ +Tail shaft—where—after gland—what?+ +Tanks—how lined—where?+ +Thrust block?+ +Ventilation—how accomplished—natural or blower?+ +Vibration?—note it at sea.+ +Water ballast—part of tank data?+ +Water line?+ +Water-tight doors—where—how managed?+ +Well decks?+ +Winches?+ +Yards—if any?+ +Zincs—what used for—why?+ A young officer must become an enthusiast about a vessel; everything on board must be known to him, if he cares to rise in his profession. CHAPTER XIV CADETS Under the laws establishing an ocean mail service certain vessels so engaged are required to carry cadets. Excerpts from this law follow: "OCEAN MAIL SERVICE