10. Draw a profile or cross-section of a plateau in a young stage of dissection. 



Draw a second profile or cross-section showing the same region maturely 

 dissected; and a third showing the same region in old age. 



11. Why does such a river as the lower Mississippi make a poor boundary line? 



If you owned a plantation bordering such a river, what dangers would 

 threaten your property ? Would you rather live on the inside or the out- 

 side of a bend in the river ? Why ? 



12. Define ten of the following terms: horse latitudes, drumlin, talus, solstice. 



neap tide, isotherm, bore, fiord, monsoon, ox-bow lake, anticyclone, cre- 

 vasse, fall-line, residual soil, cirque. 



97 



