36 BULLETIN "74, U. S, DEPAKTMENT OF AGEICULTUEE. 



Table 6. — Summary of average rates of speed of steamboats on inland waterways. 





Number of average rates reported. 



Rate, miles per hour. 



Atlantic 

 slope. 



Mississippi 

 Vallev, in- 



clnaing 

 Gulf slope. 



Pacific 

 slope. 



Total. 



Less than 4 



3 

 4 

 4 



13 

 9 



10 



12 

 15 

 14 

 6 

 4 

 





 3 

 1 

 3 

 2 

 



15 



4 and less than 6 



23 



6 and less than 8 



19 



8 and less than 10 



21 



10 and less than 12 



15 



12 and over 



10 







Total 



43 



50 



9 



102 







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