Kentucky, Louisiana, Ohio, New York and Arkansas. The western 

 species, black cottonwood, which grows 'n the Pacific Coast States, 

 furnishes 7 per cent of the total, most of which was used in Wash- 

 ington, and a much smaller amount in California. Balm of Gilead, 

 lumbered in the Northeast and in the Lake States, furnishes 5 per 

 cent, and is used in Michigan, New York and Illinois. Aspen, which 

 is commonly known in the north as popple, formed 3 per cent and 

 was used in largest quantities in Vermont, Maine, Wisconsin, and 

 Michigan. This species is cut mostly in the Northeast and Lake 

 States. Very small amounts of both large toothed aspen and Lom- 

 bardy poplar were also used in Michigan. 



Both eastern and western hemlock go into boxes. The eastern 

 species furnishes 84 per cent of the total, and the western species 

 16 per cent. Eastern hemlock is suppl'ed by mills in Wisconsin 

 and Michigan and in mountain regious of the eastern States while 

 the western species is cut almost exclusively in Washington and 

 Oregon. Eastern hemlock is used for boxes in largest quantities 

 in Illinois, Michigan, Massachusetts, New Hampshire and Wiscon- 

 sin, and western hemlock in Washington, Oregon and in California. 



Yellow poplar is a single species which is often called white- 

 wood or tulip tree. It is put to greatest use in the manufacture 

 of boxes in Oh : o, Kentucky, Pennsylvania, Tennessee, Virginia and 

 Illinois. The supply of poplar box lumber comes from West Vir- 

 ginia, Pennsylvania, Kentucky, Virginia, North Carolina, and ad- 

 jacent States. 



The different kinds of maple are used in largest quantities in 

 Michigan, Illinois, Pennsylvan'a, Ohio, and New York. It is diffi- 

 cult to ascertain the exact amount of each kind of maple used for 

 boxes, but it is estimated that 63 per cent is sugar maple, 35 per 

 cent silver maple, and 2 per cent red maple. Sugar maple is used 

 most extensively in Michigan, Illinois, and Pennsylvania; silver 

 maple in IH'nois, Ohio and Michigan; and red maple in Illinois. 

 Michigan, Wisconsin, Pennsylvania, and New York are the largest 

 producers of sugar maple lumber; silver maple is largely cut by 

 mills in the northern States, and red maple by mills in the central 

 and southern States. 



The several kinds of birch are most used in Illinois, Wisconsin, 

 Michigan and Pennsylvania. As with the maples, it is d'fficult to 

 ascertain the proportion of the different species, but it is estimated 

 that 84 l /2 per cent is yellow birch, 13 per cent sweet birch, and 2 r /< 

 per cent paper birch. The largest amounts of yellow birch are used 

 in Illinois, Wisconsin and Michigan; of sweet birch in Pennsylvania 

 and West Virginia, wh ; le most of the paper birch is used in Maine. 

 Yellow birch is lumbered mostly in the Lake States and North- 

 east; sweet birch in Pennsylvania and West Virginia, and paper 

 birch in northern New England. 



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