INDEX 



453 



Morse, Samuel, 220, 222 



alphabet, 223 



numerals, 223 



punctuation, 223 

 Mortar, 160 

 Mo tising machine, 435 

 Motion, 



kinds of, 58 



laws of, 54-67 



three laws of, 54 

 Motor car, parts of ? 362 

 Motor electric (See "Electric 



motor") 



N 



Nails, 249 

 Natural gas, 118 

 Nernst lamp, 117 

 Neutralizer, electric, 185 



Oak, 393, 400 

 Ocher, 378 

 Ohm, 172 

 Ohm's Law, 173 

 Oil, linseed, 370 

 Osmosis, 392 

 Oxidation, 133 

 Oxygen, 133 

 Ozone, 133 



Painting, 



gold-leaf work, 382 



graining, 379 



hygiene of trade, 383-387 

 dangerous pigments, 383 

 poisonous vehicles, 386 

 safeguards against poisoning, 

 384-386 



kalsomining, 380 



object of, 369 



operations of, 369 



preparation for, 369 



sign, 381 

 Paints, 369-389 



bases, 370, 374 



composition of, 370 



colors, 37$ 



driers, 371 



linseed oil, chief vehicle, 370 



pigments, 376 



red lead, 377 



resins, 372 



thinners, 371 

 turpentine, 372 



vehicles, 370 



white lead bases, 374 



white lead process, 374 



zinc bases, 377 

 Parallelogram of forces, 62 

 Patterns, 439-446 



arrangement of parts, 442 



chaplet, 443 



construction of, 44 1 



cope, 440 



difficulties in making, 445 



drag, 440 



drawing of, 444 



feeder-head, 443 



flasks and cores, 440 



method of making, 436 



pouring metal into mold, 442 



riser, 443 



use of, 436 



venting a mold, 443 

 Pear wood, 394 

 Pel ton wheel, 76 

 Perspective drawing, 230 

 Perspiration, 356 

 Physico-chemical processes, 143- 



155 



Physics, 1 

 Pine, 393 



white, 407 



yellow, 404 

 Pipes, 



capacity of, 73 



for heating systems, 350 



risers and returns, 351 



steam engines, 333-335, 336, 



337 



Pitch, 122 

 Planes, 



description of, 427 



kinds of, 428 

 Plumb bob, mercury, 56 

 Pneumatic tools, 94 

 Polishing, 277 

 Poplar, 408 

 Porcelain, 160 



