41 



ANIMALS. 



Collect and compare cocoons, chrysalids, and nests of insects, noting 

 form, size, texture, material. 



Pupa stages of Cecropia, Polyphemus, Promethra, Sphinx moth, 

 Luna moth, bag- worms, leaf rollers, various wasps nests. 



Compare cocoons in breeding cages with those found in the woods 

 and fields. 



MINERALS. 



1. Soils. 



i 



(a) Examine sands, gravel, loam, clay. 



(b) Power of each to absorb and retain moisture. 



(c) Power of each to absorb and retain heat. 



(d) Relation of soil to plant arid animal life. 



(e) Relation of physical properties to fertile and desert regions. 



NOTE. Tabulate number of seeds produced by annuals, biennials, and per- 

 ennials. Relate number of seeds to effort of plant to perpetuate its kind. Com- 

 pare seeds of annuals with those of perennials as to color, form, texture, 

 abundance and means for distribution. Compare food values of annuals, bi- 

 ennials, and perennials, and the part of the plant utilized. 



To gain some idea of the various constituents of plants, weigh a turnip, pota-to, 

 some seeds, or fruit; dry thoroughly and weigh again; burn the dried vegetable 

 matter and weigh the ash, and tabulate results. 



The life in an aquarium or breeding cage is abnormal and the main 

 object of having them in the school room is to interest the children 

 and stimulate observation and investigation. The specimens secured 

 by the effort of the individual child are of the greatest value to him. 

 The teacher should suggest and direct. 



Make collections of different soils, as sand, gravel, loam, and clay, 

 and intermediate stages as sandy loam, sandy clay, etc. Distinguish 

 physical characteristics color, texture, composition, weight, etc. 



Test temperature under ordinary conditions; subject all to the same 

 degree of heat; test again, does the mercury indicate an equal increase 

 in temperature? Subject all to the same degree of cold; test again. 

 Have all given up an equal degree of heat? 



Power of each to absorb and retain moisture. Tie a circular piece 

 of cheese cloth over the top of a tumbler in stich a way as to form a 



