36 

 DECEMBER 



PLANTS. 



Examination of liorse-chestnut, maple and fruit trees. 

 Compare growth, bark, scars, number, arrangement and 

 covering of buds formed. Probable fate of buds. 



ANIMALS. 



Distinguish between vertebrated animals; mammals, 

 birds, fishes, reptiles, amphibians. 



MINERALS. 



x\.ction of acids upon sandstone, limestone, marble, gran- 

 ite, mica, quartz, coral, shell. Eelate to formation of ca^'es 

 — chemical forces acting. 



ELEMENTARY GEOGRAPHY. 



Influence of storm upon barometer. Effect upon temper- 

 ature. 



Winter Solstice. Compare shadow of September twenty- 

 first and December twenty-first. 



NOTE.— Place small piece of rock in test-tube and note effect 

 of dilute sulphuric or hydrochloric acid upon it. Result. Note 

 which one dissolves most readily. Beds of rock best adapted to 

 formation of acids. Effect of water, holding acid in solution, 

 upon lime rock. TS'hy was it possible for mammoth cave to have 

 been formed where it is? Why is the Blue Grass region so 

 fertile? 



Compare physical and chemical forces acting. 



JANUAEY. 



PLANTS. 



Dormant condition of plant life; death of all annuals; 

 roots of biennials; stems of perennials. 



ANIMALS. 



C'ompare teeth, hoofs, and claws of rodents, carnivorous, 

 herbiverous, and omniverous animals; teeth — crown, fangs, 

 enamel, incisors, canine, bicuspid, molars. 



