SKILL I NG] 



NATURE-STUDY FOR THE SCHOOL 



13; 



motion of the sun, north and south. The shadow of a nail driven 

 in one comer of the board shifts about one-third of a degree daily, 

 on the circle. 



A globe turned in the sunshine as shown in Fig. 4 illustrates: 

 the reason for various lengths of day and night in different lati- 

 tudes. Chalk marks at a, b, c and d are seen to have a longer or 

 shorter passage through daylight (or to remain wholly in dark- 

 ness or wholly in light during the entire revolution). 



Length of day during any one season can be represented by 

 giving the axis of the globe the proper tilt. 



In the study of the moon have the pupils draw a * 'progressive: 

 diagram" of its phases as shown in Fig. 5. Each night soon after- 

 sunset for two weeks the moon's position in the sky and its phase 

 should be observed and represented in the drawing. Little 

 explanation will then be necessary to make clear the reason for 

 change of phase. 



Kodak pictures such as shown in Fig. 6 lend interest to the 

 work. 



Fig. 6 



Fig. 7 



