=Distribution.=--Maine, northern shore of Lake Erie, to west central Indiana and south to northern Georgia and Alabama. In Indiana its distribution is limited to the knobstone and sandstone area of the State. Its distribution has been fairly well mapped. Two large trees on the edge of the top of the bluff of the Ohio River at Marble Hill which is located in the south corner of Jefferson County is the eastern limit of its range. It crowns some of the ridges, sometimes extending down the adjacent slopes a short distance, from Floyd County north to the south side of Salt Creek in Brown County. Its range then extends west to the east side of Monroe County, thence southwestward to the west side of Martin County, thence south to the Ohio River. Where it is found it is generally such a common tree that the areas are commonly called chestnut oak ridges and are regarded as our poorest and most stony land. In Floyd and Clark counties it is usually associated with scrub pine. In the remainder of its range it is generally associated with black jack post and black oaks. In our area this species is never found closely associated with limestone, and reports of this species being found on limestone areas should be referred to _Quercus Muhlenbergii_. [Illustration: Plate 44. QUERCUS PRINUS Linnæus. Chestnut Oak. (× 1/2.) Acorns and loose leaves from different trees.] =Remarks.=--Wood similar and uses generally the same as white oak. The tree usually grows in such poor situations that it never acquires a large diameter, and it is only when a tree is found in a cove or in richer and deeper soil that it grows to a large size. The amount of this species is very limited and it is therefore of no especial economic importance as a source of timber supply. The bark is rich in tannin. The crests of chestnut oak ridges are often cut bare of this species. The trunks are made into crossties, and the larger branches are peeled for their bark. The nuts germinate on top of the ground as soon as they fall, or even before they fall. Usually a large percentage germinate. The tree grows rapidly where soil conditions are at all favorable. It is believed that this species should be used to reforest the chestnut oak ridges of the State, and possibly it would be one of the best to employ on the slopes of other poor ridges.