ILLUSTRATIONS 



FIG. PAGE 



1. Geological map of New York showing the distribu- 

 tion of the different rock formations based on their 

 chronological relations. (After Tarr) .... 15 



2. Geological map of the State showing the distribu- 

 tion of the different types of rock formations. 

 (After Von Engeln) 21 



3. Geological map of the State showing the general 

 direction of movement of glacial ice as indicated by 

 striations and the distribution of certain types of 

 glacial formations. (After Von Engeln) ... 28 



4. Graphs showing by decades the total area im 

 farms, the improved area in farms and the num- 

 ber of farms in New York 37 



5. Diagram showing the proportions of urban and 

 rural population and the distribution of the latter 

 between the village and the coimtry in 1910 . . 38 



6. Number and distribution of population in the State 



by place of residence 39 



7. Proportion of land area in farms by counties in 

 1910 41 



8. Value of farm real estate and buildings and the 

 amount of expenditures specified 42 



9. Distribution of farms by size in 1910 .... 43 



10. Showing the climatological districts in the State 44 



11. Showing the average number of days between kill- 

 ing frosts in spring and fall which corresponds to 

 the average length of the growing season ... 48 



xiii 



