94 



NEW YORK STATE MUSEUM 



with an area of 3960 square feet, and the other within 300 feet of the 

 outlet with an area of 1350 square feet, making a total combined 

 area of 5310 square feet. By trenching at the outlet another area 

 was found but of negligible importance. From a study of three 

 east-west trenches of 30 feet and 18 feet in respective length, a 

 vertical section revealed 11 inches of brown, loamy clay with loose, 



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Fig- 5 Girdler manganese bog, Canaan, N. Y. 



nodular manganese with infrequent nodular aggregates locally 

 developed, both overlying a bluish green unconsolidated hardpan. 

 The nodules were generally less than an inch in diameter and sub- 

 spherical in shape with a coating of whitish clay. Upon washing off 

 the clay the characteristic brownish black color prevailed, which 

 became darker upon cutting them open. The stream manganese 

 exhibited this characteristic because of natural washing and doubtless 



