4 S THE PRINCIPAL SPECIES OF WOOD. 



( Acer saccharum Marsh. 

 Sugar Maple, Hard Maple. -j ^ sacch . jnnum Wang ^ 



Nomenclature. (Sudworth.) 



Sugar Maple, Hard Maple (local Rock Maple (Me., Vt., N. H., 



and common names). Conn., Mass., R. I., N. Y., 



Black Maple (Fla., Ky., N. C.). Tenn., 111., Mich., la., 



Sugar Tree (frequent). Kans., Wis., Minn.). 



Locality. 



Best development Maine to Minnesota; range extends southward 

 to Florida and Texas. 



Features of Tree. 



Seventy to one hundred feet and more in height, one and one- 

 half to four feet in diameter. The fruit or " maple-key " 

 with wings less than right angles ripen in early autumn; one 

 seed-cavity is usually empty. Foliage turns to brilliant reds 

 and other colors later. Large impressive tree. 



Color, Appearance, or Grain of Wood. 



Heartwood brownish, sapwood lighter, close-grained, compact 

 structure, occasional "curly," "blister," or " birdseye " 

 effects. 



Structural Qualities of Wood. 



Tough, heavy, hard, strong, susceptible of good polish, wears 

 evenly, not durable when exposed. 



Representative Uses of Wood. 



Furniture, shoe-lasts, piano-actions, wooden type for showbills, 

 pegs, interior finish, llooring, ship-keels', vehicles, fuel, 

 veneers, rails, etc. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



43- 

 Modulus of Elasticity. 



2,070,000. 

 Modulus of Rupture. 



16,300. 

 Remarks. 



Birdseye, blister, and to a less extent curly and landscape 

 effects pronounced in this species. Saccharum refers to sugar 

 manufactured from the sap. Hard maple is because of hard- 

 ness of wood. 



