EXERCISE 57 



WHAT IS THE EFFECT OF LAKE MICHIGAN UPON THE SURROUNDING COUNTRY 



DURING COLD WINTER WEATHER? 



Materials. Data from pages 143 and 144 in " Elements of General Science." 



Directions. Study the curves on page 143 of the textbook for evidences of the effect of the lake 

 upon temperatures. Also study the table on page 144, which shows temperatures during a cold wave 

 a year later. See whether the conclusions regarding the effect of the lake arrived at by a study of 

 the cold wave of 1912 (p. 143) will hold good for the cold wave of 1913 (p. 144). 



So far as can be determined from these two studies, what is the effect of the lake upon cold 

 waves ? 



Additional problems. Why are there so many productive peach orchards on the east shore of Lake 

 Michigan and few or none on the west shore ? 



How can you account for the fact that there are large productive peach orchards about St. Louis and 

 in southern Illinois and few good peach orchards in central and northern Illinois ? 



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