THE SEASONING OF WOOD. 



the lumber it is very slight. Table I gives the green, air-dry, and 

 kiln-dry weight per cubic foot of the principal commercial woods, 

 and Table II gives the per cent of shrinkage from a green to an oven- 

 dry condition. 



Table I. — Average weights of various species of wood. 



Species and locality. 



Weights 



(pounds per cubic 

 foot). 



Kiln- 

 dry, i 



Air-dry. 2 



Green. 3 



27 



28 





46 



38 



39 





45 



34 

 34 

 39 



36 

 35 

 41 





53 

 52 

 46 



38 

 40 

 ( 4 ) 

 36 



39 

 42 



( 4 ) 

 37 



( 4 ) 



47 

 49 



46 



41 

 44 

 37 



42 

 46 

 38 





47 

 51 



46 



26 

 26 



27 

 27 





47 

 43 



26 

 24 



27 

 25 





41 

 41 



43 

 41 



45 

 43 





56 



54 



37 

 45 



38 

 47 





51 

 59 



43 

 43 

 24 

 35 



45 

 44 

 25 

 36 





56 

 59 

 49 

 50 



25 

 27 



26 



28 





45 



47 



34 



27 



36 



28 





46 

 33 



29 

 29 

 31 



30 

 30 

 32 





53 

 56 

 61 



( 4 ) 

 23 

 33 



( 4 ) 

 24 

 34 



0) 



46 

 50 



52 

 45 

 36 



54 

 47 

 37 





65 

 55 

 65 



43 

 43 



44 

 45 





53 



54 



42 

 36 



43 



37 





53 



56 



HAKDWOODS. 



Alder, red, Snohomish County, Wash 



Ash: 



Biltmore, Overton County, Tenn 



Black— 



Ontonagon County, Mich 



Marathon County, Wis 



Blue, Bourbon County, Ky 



Green- 

 Richland Parish, La 



New Madrid County, Mo 



Oregon, Lane County, Oreg 



Pumpkin, New Madrid County, Mo . . 

 White- 

 Stone County, Ark 



Oswego County, N. Y 



Pocahontas County, W. Va 



Aspen : 



Rusk County, Wis 



Largetooth, Sauk County, Wis 



Basswood: 



Potter County, Pa 



Marathon County, Wis ■ 



Beech: 



Hendricks County, Ind 



Potter County, Pa 



Birch: 



Paper, Rusk County, Wis 



Sweet, Potter County, Pa 



Yellow — 



Potter County, Pa 



Marathon County, Wis 



Buckeye, yellow, Sevier County, Tenn . . . 

 Buckthorn, cascara, Lane County, Oreg. . 

 Butternut: 



Sauk County, Wis 



Sevier County, Tenn 



Cherry: 



Black, Potter County, Pa 



Wild red, Sevier County, Tenn 



Chestnut: 



Baltimore County, Md 



Sevier County, Tenn 



Chinquapin, western, Lane County, Oreg. 

 Cottonwood: 



Pemiscot County, Mo 



Black, Snohomish County, Wash 



Cucumber tree, Sevier County, Tenn 



Dogwood: 



Flowering, Sevier County, Tenn 



Western, Lane County, Oreg 



Elder, pale, Douglas County, Oreg 



Elm: 

 Cork- 

 Marathon County, Wis 



Rusk County, Wis 



Slippery— 



Hendricks County, Ind 



Sauk County, Wis 



1 About 8 per cent moisture. 



2 About 12 or 15 per cent moisture. Average condition reached without artificial heating by material 

 sheltered from precipitation, North Central States. 



s Average green material. 

 * No figures available. 



Note.— Any individual lot of lumber in the condition specified in the column headings would proba- 

 bly vary 5 per cent from the figures given with a possible variation of as much as 20 per cent. For exam- 

 ple, young thrifty pines will have a high moisture content when freshly cut and will probably weigh 20 per 

 cent above the average given. 



