U. S. B. F. Doc. 1001 



Fig. 2. — A rough day on Lake Michigan. Nets are not litteil if the lake is much rouglier than this 



Fig. 3.— Returning to harbor with the day's catch of Lake Erie's fish. Note that these tugs 

 are housed fore, while that in Figure 2 has an open deck. Both types are in use on the 

 lakes 



