2S2 Dr. 0. J. Lodge on a Systematic Classification 



o 



o O 



.. OS 

 K H 



w ?: 



PJ " 

 ro <: 



O y, 



» EH 





4. 

 Energy of gravitation. 

 E. g. A bead of water, 

 A raised weight. 



8. _ 



Energy of strained elastic 



bodies. 



E. g. Watch-springs. 



12. 



Energy of molecular 



stresses. 



E.g. "Internal work." 



'd 



m 



2 



© 



d 



20. 



(1) Electrostatic stress. 



(2) Electromagnetic stress. 



1 



5 



PS H 

 fc EH 

 H O 

 H Ph 



^g 



§2 



^ H 



8 



-to 



s 



K 



3. 

 E. g. The moon'3 libration. 

 Tides. 

 Pendulums. 



7. 

 Sound-vibrations. 

 E. g. Tuning-fork. 



to 



1 

 O 



© 

 © 



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15. 

 jhemical combination and 



The period of atomic vibra- 

 tion is observed by the 

 spectroscope. 



19. 



(1) Discharge of accumula- 



tors. 



(2) Radiation. 



Pi 



H 



D 



Eh 



H 



Pi 

 O 



o 



H 

 O 



O 



o 

 S 





2. 



E. g. Earth's annual 

 motion. 



E. g. Cannon-ball. 

 Rivers. 



10. 



Most of the heat-energy of 



gases. 



14. 



,ake place during the act of 

 during dissociation. 



The translation of atoms is 

 observed in electrolysis. 



d 

 © 



CO O 

 7—1 © 



© 



© 



•2 



1 



1. 



E. g. Earth's diurnal 

 motion. 



"© 

 © 



9. 



Part of the heat-energy of 



fluids. 





 'M 



GO 



.2 



. 



co g 





 d 

 .-a 

 c 

 P 



d 



bfi 



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Particles or molecules ... \ 







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