Schedule of Classification 



3640 Hardness. Friction between 



solids. Abrasion ... 342 



Abrasion 342 



Boring 342-343 



Apparatus 342 



Artesian Wells 342 



Boring and Shaft-sink- 

 ing through Water- 

 bearing Strata ... 343 

 Friction between Solids. 



(See also 3670.) 343-347 



Bearings and Journal 

 Friction ... ... 344 



Brakes 344-345 



Machinery ... 345-346 



Railway Resistances. 



(See also Brakes.) ... 346 

 Rolling Friction. (See 

 also Railway Resist- 

 ances.) 346 



Sliding Friction 346-347 



Hardness. (See also 3210 



Crystals.) ... 347-348 



Determination Methods 347 



Hardening Processes 347-348 



3650 



3660 



3670 



Viscosity, plasticity, duc- 

 tility, malleability, etc. 348 

 Adhesion. (See also Physics 



0300.) 348 



Deformation Processes. (See 



also Ductility, etc.) 348-349 



Ductility 349-350 



Flow of Solids 349 



Malleability 350 



Plasticity 350 



Punching 350 



Viscosity ... 351 



Pressure of earth and sand 351 



Determination 

 Em bankments 

 Pressure in Mines 

 Retaining Walls ... 

 Pressure on Walls 

 Sand 



351-352 

 352 



352-353 

 353-354 

 353-354 

 354 

 354 

 Lubrication. (See also 3640 



Friction.) 354 



Friction of Lubricated 



Journals 355 



Ixxiii 



