Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

729 INDEX, PAGE Loads on Abutments .. 168 --------Bridges .. .. 121 --------------—• American 159 --------------Continuous Gir- t ders...................163 --------Cross-girders .. 162 —-------Floois .. .. 121 --------Girder Bridges .. 162 --------Piers.............91 ------------------------------Roofs .. ..141 ------------------------------Structures.. .. 121 ------------------------------taken by Locomo- lives ................221 Loam.....................425 Lock Gates........... ..271 --------------—- Best Angle f >r 295 ---------Pressure on .. 295 Locks, Canal .. ..270 ---------Time of Filling 270 Locomotives, Adhesive Power of ........... 224 --Balancing .. 516 ------------Centre of Gravity of ...........503 ------------Cunsunip- tion of Oil in........503 ------------Dimensions of....................506 —---------— Distribution of Weight in..........224 ------------Duration of S38 ------------Evaporative Power of..............465 —-----------Fire-box Stays ................477 ------------French Prac- lice----504 ———---------Heating ami Grate Surface of .. .. 4?3 ------------Lap and Lead in...............501 ------------Numb r of ' 232 ------------Piston, Speed of----502 PAGE Locomotives, Proportions ot'501 -----------Revolutions of Driving-wheel ... .. 502 ■—-—;-Springs of 501 -----------Table of Di- inensiotis of...........506 -----------Thickness of Cylfnders of.........517 —----------Top Stays of 477 -----------Tractive Power of .. . .221,225 Log, to cut Beams from .. 121 Logarttbmic Sines, Tang., &c......................6'6 Logarithms, Hyperbolic.. 689 -----------Invuluti* n and Evolution by.. .. 683 -----------ofNunbers 60 -----------Proportion by 683 -----------Useful., .. 695 Long Measure............680 Machine Cutters .. .. 4-10 Machinery, Depreciation of 4 34 ---------Hydraulic .. 543 ---------Mining .. .. 449 ---------of Iron-works 4-11 Machines, Dredging.. .. 434 —--------Wood-working 440 Magnets, Electro- .. .. 3(5 Mains, Dimensions of Gas 271 Malleable Castings .. .. 35 Marine Bailers..........470 ------Table of .. 527 -------- Engines, Dimen- sions of Compound .. 518 ------’Glue .. 426 ------Surveying .. .. 8 Mariotte’s Law..........365 Masonry Dams, High .. 287 .-------------•' Low .. 288 Masts and Yards, Iron for 30 [ Materials, Notea on Strength of...........26,30