26. Carbon a part of all fuels. (See Section 85.) 



Experiment 16. Carbon from fuels. 

 Experiment 17. Perfect and imperfect 

 combustion. 



27. Radiation of heat. (See Section 87.) 



Experiment 18. Good and poor radn- 

 tors. 



28. Absorption of heat. 



Experiment 19. A good radiator is i 

 good absorber of heat. 



23. Temperature curves. 



Experiment 20. M a k i n g temperature: 

 curves. 



30. The measurement of heat. 



Experiment 21. The difference between 



temperature and heat. 

 Experiment 22. The unit of heat. 



31. Keat-holding power. 



Experiment 23. Heat capacity. 



32. The heat required to melt ice. 



Experiment 24. The heat of mclti""*. 

 Experiment 25. Ereezing mixtures. 



33. The heat required to boil water. 



a. The heat absorbed. 



Experiment 26. The heat of boiling. 



b. The heat given out. Heating by steam. 



Experiment 27. The heat of condensa- 

 tion. 



34. The history of heating. 



