426 NATURE-STUDY 



Earth-study: Home geography, land and water forms, 

 the lay of the land. School-yard drainage. Brook study:* 

 Erosion, sediment, deposits, falls, rapids. Apply to river. 

 Observe uses of the river.* Study of valley in relation to 

 transportation, settlement. Weathering of rocks and soil 

 formation. This should all be studied in the field. (V, 326, 



327> 328, 335, 337-) 



Earth water : Source. Springs and wells. City water supply. 

 Purification from sediment (experiments.) (As last, and 263, 

 269, 264.) 



Clay * : Properties and uses, where found. Visit clay bank, 

 brickyard. The making of bricks. The mason.* Observe 

 masons at work. (T, S, V.) Coal: Where does it come 

 from ? Uses in home, engine, factory, smithy. A little about 

 a coal mine. The miner. (V, T, 348, 330, 337.) Common 

 metals: Learn to recognize. Simple experiments on their 

 elasticity, hardness, etc., and illustrations of their uses. A 

 little about primitive man before and after his discovery of 

 the use of metals. Go about the schoolroom and find 

 articles made of metals. Make a list. Do the same at 

 home, naming the metal used. (V, U, T, S, 263, 269, etc.) 

 Table salt — the story of. (V, 263, S.) 



Weather: Seasonal changes, effects upon landscape,* 

 plants, and animals. (A, 6.) Study of moisture in the air, 

 clouds,* rain,* snow,* frost crystals, ice.* Illustrate as far 

 as possible by simple experiments in physics. Note the 

 beauty of each phenomenon and the benefits we derive 

 from it. Also show the benefit to plants and animals. Learn 

 the use of the thermometer,* the freezing and the boiling 

 point. Keep a record of cloudiness, rain, wind, and tempera- 

 ture for a short time each season. Which wind brings the 



