PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. id 



considerably greater, or about 120 feet in height by 3^ to 4 in diameter, 

 very large trees having an ambitus of 75 to 95 feet. The following meas- 

 urements show pretty well the difference in size between trees growing 

 in rich bottoms and those growing in the drier upland woods : 



The following measurements are given in Mr. Johnston's list, but it is 

 not stated whether the trees grew in uplands or in the bottoms ; most 

 Ijrobably the former, however : 



The White Oak begins to leaf, near Mount Carmel, about the 12th of 

 April. 



63. (209.) Quercus hicolor. Swamp White Oak. 



A very common, or in some places abundant, tree, fully equal to Q. 

 alba in size, but more resembling in form Q. macrocarpa. Only two speci- 

 mens have been measured ; one of these, a somewhat decayed prostrate 

 one, measured 4 feet 8 inches across the top of the stump (not including 

 the bark), the trunk 67 feet to the first limb ; the topmost branches were 

 gone, but at 100 feet from the base the five limbs were 10 inches to 1 foot 

 in diameter, so that the tree when standing must have been 130 feet or 



