3S 



NOTE. Relate effect of frost upon rocks to rapid disintegration. Effect of. 

 chemical and physical forces upon calcareous and silicious rock. 



Read Ruskin's "Ethics of the Dust" in connection with the study of crystals. 



MARCH. 



PLANTS. 



Watch first awakening of the tree following outline for "Tree 

 Study.' 7 



ANIMALS. 



Note first appearance of insects. Note beauty of color, delicacy of 

 marking. Compare fully developed insect with larva; what like- 

 nesses and differences food, manner of feeding, locomotion. 



Pond life spawn of frogs and toads; development of tadpoles into 

 frogs. Crayfish; turtles; snails. 



MINERALS. 



Water. Place a drop of salt, hydrant, lime, rain, filtered or distilled 

 water on a clean piece of glass, and evaporate. Explain result. Re- 

 late to animal life in water, and beds of lime-stone. 



ELEMENTARY GEOGRAPHY. 



Compare lowest and highest temperature of March with September 

 and December. Compare most northern and southern isotherm of 

 September and March. 



Vernal Equinox. Angle of sun's rays with horizon; relate to lati- 

 tude. Relation of latitude to climate. 



NOTE. Relate lime, shell life and coral in ocean to beds of limestone. En- 

 courage pupils to make collections of land and sea shells; note beauty of texture, 

 color, form, markings, spines, etc. 



APRIL. 



PLANTS. 



Continue tree study. Examine lichens, fungi, for spores. Note 

 color, texture, form, growth of lower forms of plants. 



ANIMALS. 



Study dragon fly. Compare life history with that of a moth. 



