PURE SCIENCE 
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Applications Preferably clast in Useful arts. See 621.3, and 532.8, note 
Telegraf For telegraf business see 654 
Telefone Microfone 
For telefone business see 654.6 
Dynamos Electric lighting 
Tranmission of power Storage 
Electrometallurgy 
Galvanometers Batteries Coils 
Medicin See also 615.84 
Electric signals See 654.9 
Tables Problems Questions 
Magnetism 
For Animal magnetism, Mesmerism, etc., see 134 
Theory Properties of magnets Lines of force 
Communication Induction Touch 
Electromagnetism 
Diamagnetism 
Terrestrial magnetism 
Applied Magnetic machines 
Tables Problems Questions 
Molecular physics 
Theory ~~ Molecular structure . Vortex rings 
Properties of solids 
Elasticity Torsion 
Strength of materials 
See also 620.1 Engineering materials 
Permanent displacement of molecules 
Malleability 
Ductility 
Hardness 
Tempering i 
Intermolecular forces 
Radioactivity 
See also 541.38 Radiochemistry: 546.432 Radium 
CL 
Q 
Tables Problems Questions