Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

731 INDEX. FACE Mots for Baling .. .. 290 Moulds, Blackening for .. 425 Mountain Barometer .. 12 Mountings, Boiler .. .. 462 Multitubular Boilers .. 463 Natural Sines, Tan., &c., Table of...............621 Navigable Rivers .. •• 2G4 Necks and Couplings .. 408 Nitro-glycerine.........86 Notes on Boilers .. ..4'1 —.------Iron............34 --------Lime............100 _..Mortar, Cement, ....____9» --------Permanent Way 202 --------Strength of Ma- terials ................26 --------Timber .. .. 103 Nozzles, Propoit'ons of .. 248 Numbers, Logarithms of 6S0 Keciprocals of 710 _________Squares and Cubes of...............696 3’6 and 1’7, Powers of .............Ill 4th and 5th Powers of .............^09 _________trete, Powers of 708 -------— Useful fur Hy- draulics .. .... • • 243 ---------Useful for Pumps............. • • 283 Useful for Steamships .. .. • • 568 _________Useful for Surveyin'? ............. 3 Nuts and Bolt-heads, Pro- portions of.............418 _______________Weight of 51 Oblique Jet of Water .. 249 Observation, Errors of .. 610 PAGE Obstacles in Surveying .. 2 Obstruc ions in Rivers .. 261 Oil, Consumption of, ou Railways ,, .. .. 503 ----Drying, fur Paint ,. 429 ----Stowage of .. .. 566 Oils, Weight of........... 21 Ordinates, Elliptical .. 643 ---------of Curves., .. 215 ------------------------------Parabolic..-------------------..-----------------647 ------------------------------Segmental. .. 634 i Orifices, Discharge of Water from..............214 O.-cillation, Centre of .. 391 Ounces and Pounds Deci- mal Equivalents of .. 594 Oval Sewers .. ,, .. 273 Overshot Water-wheels .. 531 7T, Vnines of .............633 i Paddle-wheel, Diameter ,i.f 568 -------------Floas of .. 565 ------------Slip of 561 -------------Steamers,Pro- portions of ............565 Paecottah .. .. ,, ,. 290 Painting ..................436 --------DryiriR Oil for .. 429 ---------Old Work.. .. 429 Paints, Proportions of .. 430 Paper, Drawing, Sizes of 591 Parabola, Construction of 648 -------------- Formulæ for .. 646 .----------------------------Ordinates of .. 647 ---------Tangent of .. 618 i Parallel Motion ... .. 496 ParalV’logramof Forces.. 154 Parliamentary Hegulatiobe for Railways., .. .. 187 I’aiting Sand..............425 Patterns, Relative Weight of Castings to .. ..420 ■ Paved Roads..............211 Peaucellier’s Motion .. 497 Obs'aeles in Ranging Lines 2