18 

 ELEMENTARY GEOGRAPHY. 



Frost or dew more common? Effect of wind, and clear or cloudy 

 night upon formation of frost or dew. 



Compare course of sun with September and October. Effect upon 

 length of day and night; temperature. 



NOTE. Relate effect of shortening of days upon temperature and plant life. 



Compare milkweed, turnip and tree. Destiny of annuals depends entirely upon 

 production of seed. Count seeds in pods of one milkweed plant. Trace life 

 history of biennial appearance of root and stem of first year; root, stem, leaves, 

 flowers, fruit of second year. Count seeds. Show relation between number of 

 seeds prepared and number of buds formed by perennials. 



Relate minerals and metals to- material stored away in the ground for man's 

 use. 



DECEMBER. 

 PLANTS. 



Effect of frost upon twigs, buds, and seeds. 



ANIMALS. 



Compare development of limbs in quadrupeds and bipeds; position 

 of body in each; use of upper limbs. Compare squirrel and rabbit 

 with cat and dog. 



MINERALS. 



Effect of thawing and freezing upon roots of plants. Power of 

 granite, limestone, sandstone, coal, sand, clay, iron ore, copper ore to 

 absorb and retain moisture. 



ELEMENTARY GEOGRAPHY. 



Increased or decreased cloudiness, rainfall; wind more or less 

 variable; wind preceding rain or accompanying clearing weather. 



Relation of line showing apparent paths of sun since September. 

 Winter solstice. 



NOTE. Pupils should have definite idea-as to rising and setting of sun, its 

 position at noon in December. From personal observation difference between 

 animal and plant life of June and December carefully noted. 



Development of most parts of animal organism is for the purpose of securing 

 food. Erect position of body is proportioned to development of fore-legs as 

 prehensile organs. 



The work on minerals is for the purpose of showing the value of each for 

 building purposes. Weigh in air, immerse in water and weigh again while wet. 

 Difference in weight shows absorptive power. Effect of frost cracking rock. 



