IMPROVEMENT OF MUCK SWAMPS. 



167 



A small steam dredge has given the best satisfaction in building large 

 open ditches in mucky soils. The cut shows one built at Bucyrus, Ohio. 



In some instances brush or j)ole drains have been used on marshes with 

 good success. Such drains, however, are likely to be silted full in a sliort 

 time unless well protected, and I cannot recommend them for such uses; 

 they will do better on the uplands. 



