LIST OF EXPERIMENTS. 



Section Page 



3. Expt 1. To Locate the North by the North 



Star . ' .' . . ' ;. 3 



Expt. 2. The Movement of the Great Dipper 4 

 Expt. 3. To Locate the North by Means of 



Shadows ." . . . . 5 



5. Expt. 4. To Locate the South by Means of a 



Watch . .... . 8 



6. Expt. 5. The Direction of Sunrise and Sunset 10 

 Expt. 6. To Record the Direction of Sunset 11 



7. Expt. 7. The Sundial , . ... . .12 



8. Expt. 8. The Sand-glass . . ". > ' 14 



9. Expt. 9. The Height of the Sun at Noon by 



by Shadows . . . . 15 



Expt. 10. The Height of the Sun at Noon in 



Degrees . . . . . 16 



10. Expt. 11. The Appearance of the Sun 



through Smoked Glass . .j 19 



11. Expt. 12. The Effect of Sunlight upon Grow- 



ing Plants ' 20 



12. Expt. 13. Fading and Bleaching . ... 22 

 Expt. 14. Blue Prints of Leaves and other 



Articles . . . ; . . 23 



14. Expt. 15. The Way Light Travels . . 26 

 Expt. 16. How to Make and Use a Pin-hole 



Camera . . . . . 27 



15. Expt. 17. Reflection from Mirrors . .29 

 Expt. 18. Diffused Reflection of Light . .31 



