Part 50
The wood weighs 43.95 pounds per cubic foot. It is a little below eastern white oak in fuel value, a little above it in strength, and somewhat under it in stiffness. The color is pale reddish-brown, resembling applewood in tone, but generally not quite so dark. The wood is porous, but the pores are very small. Medullary rays are numerous but thin. On account of the rays being of a little deeper red than the other wood, quarter-sawed stock is handsome and of somewhat peculiar appearance. The figure is much like quarter-sawed beech, but of deeper, more handsome color. The contrast between springwood and summerwood is not strong, though easily seen. Generally, the summerwood constitutes about one-fourth of the annual ring. The tree grows slowly, but with much irregularity. The increase in one season may be four or five times as great as in another. The bark exfoliates, and is quite thin.
Madrona has never been put to much use. Difficulties in seasoning it have stood in the way. The wood warps and checks. Similar difficulties with other woods have been overcome, and such troubles should not be unduly discouraging. The beauty of the wood is unquestioned. It presents a fine appearance when worked into furniture, particularly in small panels and turned work, like spindles, knobs, and small posts. When made into grills it shows a surprising richness of tone. The wood polishes almost to the smoothness of holly. Small quantities are made into flooring; a little goes to the furniture makers; lathes turn some of it for novelties and souvenirs; fuel cutters sell it as cordwood; and tanbark peelers cut the trees for the thin, papery bark. In that case the trunks are left to decay, unless they happen to be convenient to a cordwood market.
One of the most extensive uses for the wood of madrona is for charcoal burning. Blacksmiths buy it because it is cheaper than coal, and some is used in shops where soldering and welding are done; but the most exacting demand comes from gunpowder manufacturers. They find this wood almost equal to alder and willow as a source of charcoal suitable for powder.
MEXICAN MADRONA (_Arbutus xalapensis_) might properly be called Texas madrona as it occurs in that state and probably in no other, but its range extends southward into Mexico. It produces a poorly shaped trunk seldom much more than twenty feet high and one foot in diameter, and usually divided into several branches near the ground. It blooms in March and ripens its fruit in midsummer. The tree is found on dry limestone hills, and in the valley of the Rio Blanco, and among the Eagle mountains. Cabinet makers in Texas put the wood to rather exacting uses after they have carefully seasoned it to overcome its natural tendency to check. It is very hard; its color is a little lighter than applewood which it resembles; annual rings are scarcely visible, so regular and even is the year’s growth. In Texas the wood is made into plane stocks, tool handles, and mathematical instruments.
ARIZONA MADRONA (_Arbutus arizonica_) has a restricted range on the Santa Catalina and Santa Rita mountains of southern Arizona, where it ascends to an altitude of 8,000 feet. The species extends southward into Mexico. The largest trees attain a height of fifty feet and a diameter of two. Trunks are usually straight and shapely, and show the thin, red bark common to the genus. The wood resembles that of the species in Texas, and doubtless is suited to the same purposes, but no utilization of it has been reported, except for fuel, and for fences and sheds on mountain ranches. When the region becomes more thickly settled, the value of the wood will be appreciated.
MANZANITA (_Arctostaphylos manzanita_) is not generally welcomed by botanists into the tree class. They say it is too small; but it is as large as some of the laurels which go as trees without question, and is shaped much like them. There are several species of manzanita. The word is Spanish and means “little apple.” The name is natural, for one of the most noticeable things about manzanita is the fruit, the size of well-grown huckleberries. It is shaped like an apple, and its tart taste suggests that fruit. The Digger Indians along the foothills of the Sierra Nevada mountains in California gather the berries by the sack, dry them, and keep them for winter--if they can. It is often impossible to keep them because, like other fruit, they are apt to become wormy. When the Indians discover them in that condition they display rare thrift and economy for savages, by soaking the fruit and pressing out the juice, which is said to pass for a pretty fair quality of cider, but it must be quickly consumed or it will mother and change to vinegar. Indians now put the berries to use less frequently than in early times when they were nearly always hungry.
Manzanita is of the same family as madrona. Its range extends along the mountains of the Pacific coast ranges from Oregon to Mexico, and inland to Utah. The largest trees are about twenty feet high and a foot or less in diameter; very much divided and branched, with limbs crooked in more ways, perhaps, than those of any other representative of the vegetable kingdom. Thousands of canes are cut from the branches, and if any living man ever saw a straight one he failed to report it. Manzanita grows in almost impenetrable thickets on dry slopes and ridges. Its thin foliage casts so pale a shadow that the tree’s shade is little cooler than the boiling sun upon the open naked ground and rocks. The bark is a reddish-chocolate color, and exfoliates in scales of papery thinness. The heart is nearly of the same color as the bark, but the sap is white and very thin. The wood is hard, strong, stiff, but exceedingly brittle. If a branch is sharply bent it will fly into splinters.
The uses of the wood are numerous, but the total quantity demanded is moderate. Novelty stores sell small articles to tourists in California, sometimes passing the wood off as mountain mahogany which does not so much as belong to the same family. The most common articles manufactured by novelty shops from manzanita are canes, paper weights, paper knives, rulers, spoons, napkin rings, curtain rings, cuff buttons, dominos, manicure sticks, jewel boxes, match safes, pin trays, and photo frames.
COTTONWOOD
COTTONWOOD[9]
(_Populus Deltoides_)
[9] The following species grow in the United States: Cottonwood (_Populus deltoides_), Aspen (_Populus tremuloides_), Largetooth aspen (_Populus grandidentata_), Swamp Cottonwood (_Populus heterophylla_), Balm of Gilead (_Populus balsamifera_), Lanceleaf Cottonwood (_Populus acuminata_), Narrowleaf Cottonwood (_Populus angustifolia_), Black Cottonwood (_Populus trichocarpa_), Fremont Cottonwood (_Populus fremontii_), Mexican Cottonwood (_Populus mexicana_), Texas Cottonwood (_Populus wislizeni_).
Eleven species of cottonwood are found in the United States, if all trees of the genus _Populus_ are classed as cottonwoods. It is not universally admitted, however, that they should be so classed. The common cottonwood is the most widely known of all of them, but it is recognized under different names in different regions, viz.: Big cottonwood, yellow cottonwood, cotton tree, Carolina poplar, necklace poplar, broadleaf poplar, and whitewood.
Its range covers practically all of the United States east of the Rocky Mountains. It is rare or missing in eastern New England and southern Florida, and most abundant in the Mississippi valley, and there the largest trees are found. Some exceed 100 feet in height, and four in diameter. Extreme sizes of 140 feet in height with diameters of from seven to nine have been reported. The cottonwood was a frontier tree on the western plains when settlers began to push into the region. It grew as far west as any hardwood of the eastern forests, and was found beyond meridian 100, which was supposed to be the boundary between the region of rains and the semi-arid country. The cottonwood clung to the river banks and to islands in the rivers, and by that means escaped the Indian’s prairie and forest fires which he kindled every year to improve the range for the buffalo. It is supposed that most of the open country east of meridian 100 was originally timbered, and that the Indians destroyed the forests by their long-continued habit of burning the woods and prairies every year to improve the pasture. Cottonwood was the longest survivor, because it grew in damp places where fires did not burn fiercely. Black willow was its most frequent companion on the western outposts of the forests.
The cottonwood was fitted for holding its ground, and pushing forward. Its light seeds are carried by millions on the wind and by water. The tree bears large quantities of cotton (hence the name), and when the wind whips it from the tree, seeds are caught among the fibers and carried along, to be scattered miles away.
This tree was not much thought of by eastern people who had plenty of other kinds of wood, but pioneers on the plains who had a hard time to get any, found cottonwood useful. It made fences, corncribs, stables, cabins, ox yokes, and fuel. The first canoes made by white men on the upper Missouri river were of cottonwood. Lumber cut from this tree is inclined to warp and check unless carefully handled, and this prejudiced it in the eyes of many; but difficulties of that kind were easily mastered, and instead of being a neglected wood it became popular. Some of the largest early orders came from Germany. Vehicle makers in this country employed it for wagon beds, as a substitute for yellow poplar when that wood’s cost advanced. Manufacturers of agricultural implements were pioneers in its use, it being excellent material for hoppers, chutes, and boxes.
Cottonwood weighs 24.24 pounds per cubic foot, which is approximately the weight of white pine. It has about the stiffness of white oak, but only about eighty per cent of white oak’s strength, and fifty per cent of its fuel value. The wood is very porous, but the pores are small, usually invisible to the naked eye. The medullary rays are small and obscure. The appearance of the wood is not improved by quarter-sawing. The summerwood forms a thin, dark line, so faint that the annual rings are often scarcely distinguishable. The tree is generally a rapid grower; heartwood is brown, sapwood lighter, but as a whole, this tree produces white wood.
The annual cut is declining. It was little more than half in 1910 what it was in 1899. Some regions where large trees were once abundant now have few. The sawmill output in 1910 for the United States--including several species--was 220,000,000 feet. The veneer cut was 33,000,000 feet, log measure; the slack cooperage staves, chiefly for flour barrels, numbered 44,000,000; and pulpwood amounted to about 18,000,000 feet. The lumber cut was largest in the following states in the order named: Arkansas, Louisiana, Mississippi, Missouri, Tennessee, Iowa, Wisconsin, Michigan, Oklahoma, and Minnesota. The tree was lumbered in forty-one states.
Cottonwood is a standard material in several lines of manufacturing. It is made into nearly every kind of box that goes on the market, from the cigar box to those in which pianos are shipped. Manufacturers of food products are particularly anxious to procure this wood, and it is one of the best for woodenware, such as dough boards, ironing boards, and cloth boards. It is used by manufacturers of agricultural implements, interior finish, bank and office fixtures, musical instruments, furniture, vehicle tops, trunks, excelsior, saddle trees, caskets and coffins, and numerous others.
There is no danger that cottonwood will disappear from this country, but it will become scarce. It is being cut much faster than it is growing, and is losing favor as a planted shade and park tree, because of its habit of shedding cotton in the spring and its leaves in the early autumn.
SWAMP COTTONWOOD (_Populus heterophylla_) is known also as river cottonwood, black cottonwood, downy poplar, and swamp poplar. Its range describes a crude horseshoe, running from Rhode Island down the Atlantic coast in a narrow strip, where it is neither abundant nor of large size; touching northern Florida; running westward to eastern Texas and thence up the Mississippi basin and the Ohio river to southwestern Ohio. There is nothing handsome about its appearance with its heavy limbs and sparse, rounded crown. In the eastern range the average height is probably not more than fifty feet but in the fertile Mississippi valley it reaches 100 and has a long merchantable bole three feet in diameter. Its bark is rugged, dirty-brown and broken into loose, conspicuous ridges. It is easily distinguished from the other cottonwoods by the orange-colored pith in the twigs. The buds are rounded and red and have a resinous odor. Sawmills and factories never list this wood separately. It comes and goes as cottonwood. Its uses are the same as those of common cottonwood. The two species grow in mixture throughout the entire range of the swamp cottonwood.
TEXAS COTTONWOOD (_Populus wislizeni_) is a rather large tree and is the common cottonwood in the upper valley of the Rio Grande in New Mexico and western Texas. The yellowish color of the twigs is apt to attract attention. The wood is used about ranches and occasionally a log finds its way to local sawmills; but its importance is limited to the region where it grows.
MEXICAN COTTONWOOD (_Populus mexicana_) extends its range north of the Mexican boundary into southern Arizona and southwestern New Mexico. It is abundant in Mexico where the largest trees are eighty feet high and three or four in diameter. It is smaller near the northern limits of its range, and there it hugs the banks of mountain streams. Stockmen use the trunks, which are usually small enough to be called poles, to make fences and sheds.
NARROWLEAF COTTONWOOD (_Populus angustifolia_)is a mountain species which manages to live in the semi-arid regions from the Rocky Mountains of Canada to Arizona, but is seldom found below an elevation of 5,000 feet, and it ranges up to 10,000. Trunks are eighteen inches or less in diameter, and fifty or sixty feet high. The seeds are larger than those of most other cottonwoods. It being a semi-desert species, its wood is appreciated where it is accessible, and it has local uses only.
LANCELEAF COTTONWOOD (_Populus acuminata_) is a small tree with limited range, growing in the arid region along the eastern base of the Rocky Mountains, southward from the Black Hills. It is found also north of the Canadian border. It is usually fifteen or eighteen inches in diameter, and thirty or forty feet high. Trunks seldom go to sawmills, but some local use is made of the wood. Trees are occasionally planted for shade in towns of western Nebraska and Wyoming.
FREMONT COTTONWOOD (_Populus fremontii_), called white cottonwood in New Mexico, but elsewhere simply cottonwood, grows from western Texas to California, and as far north as Utah and Colorado. It sometimes attains a diameter of five or six feet and a height of 100. The Indians in New Mexico formerly made rude, clumsy ox carts of this wood, without a scrap of iron or other metal in the vehicles. One of the carts is preserved in the National Museum, Washington, D. C. The wood is tough and light, but it is dull white, with no attractive figure. Even the annual rings are hardly distinguishable. Logs are occasionally sawed into lumber, and farmers in western Texas make wagon beds of it.
BALM OF GILEAD
BALM OF GILEAD
(_Populus Balsamifera_)
This tree is known in different regions by the following names: Balsam, balm of Gilead, cottonwood, poplar, balsam poplar, and tacamahac. The usual name, balm of Gilead, is applied in recognition of the supposed healing virtue of the wax which covers the buds and young leaves. It has long been used in medicine, but its exact value is still a matter of discussion. The wild Indians of the North discovered a use for the balsam in mending their bark dishes, and plugging knot holes in the wooden trenchers. The wax is slow to dissolve in water, and it resisted for a long time such soups as were known to the redman’s culinary art. Bees know the value of the wax and use it to seal cracks and crevices in their hives and to hold the comb in place. It is popularly believed that the economy of the wax on the buds is to keep them from freezing. That view is erroneous, for it would take more than a coating of wax to keep the buds warm with the thermometer from fifty to seventy degrees below zero, as it is every winter in some parts of this tree’s range.
Balm of Gilead is a native of the North from the Atlantic to the Pacific, but its finest growth is about the headwaters of the Mackenzie river, on Peace and Laird rivers, and the lower valley of the Athabaska. Sixty years ago Sir John Franklin reported that most of the driftwood of the Arctic ocean was this species. Since that time the range has been more definitely determined, and it is now known that the tree grows so far north that it is for some weeks in darkness, and again in summer for some weeks in unbroken sunshine. It grows in Alaska nearly 200 miles north of the Arctic circle. Its natural range southward reaches New England, New York, Michigan, Nebraska, Nevada, and Oregon.
Trees of all sizes abound, from mere shrubs in the outskirts of its range to trunks 100 feet high and six feet in diameter in favored localities. In the United States the best timber seldom exceeds thirty inches in diameter and sixty or seventy feet in height. The bark on limbs and young trunks is brownish-gray, frequently so tinged with green that it is noticeable at a considerable distance; but usually large trees have reddish-gray bark with deep furrows and wide ridges. Year-old twigs are clear, shiny reddish-brown; end buds are about an inch long, the side buds somewhat shorter.
The wood is not distinguishable in appearance from that of the other poplars or cottonwoods, but it is lighter than most of them, weighing 22.65 pounds per cubic foot, has a breaking strength which places it among the weakest woods, but in stiffness making a much better showing. The pores are small, numerous, and are distributed equally through all parts of the wood.
Balm of Gilead bears seeds abundantly and scatters them widely. It must do its planting quickly in the short summers of the cold North. It sticks close to alluvial flats, banks of rivers, borders of lakes and swamps, and gravelly soils. It grows to a diameter of fifteen inches in about forty-five years.
Though balm of Gilead is not one of the most important timber trees of this country, its place is by no means obscure. No separate tally is kept of it among woods cut for pulp, but it goes with aspen and other similar species as “poplar.” A little better account is kept of the amount passing through wood-using factories. The annual quantity so reported in Illinois is 2,775,000 feet, and it is made into boxes and crates. The lumber is shipped from the North, since it does not grow as far south as Illinois. The situation is different in Michigan, for balm of Gilead grows there. The amount going yearly into factories in that state is reported at 4,912,000 feet. It is made into many commodities, but boxes and crates take most of it. The wood is reduced to veneer and converted into berry buckets, grape baskets, fruit and egg crates, and other small shipping containers. It is made into excelsior and woodwool which are used as packing material. Druggist’s barrels are manufactured from this wood. These are small, two-piece vessels, bored hollow, with a closely fitting lid, and varying in size from a couple of inches high, to nearly a foot. They contain powders, perfumes, pills, and other commodities in small bulk. The wood is worked into pails, tubs, and kegs. Furniture makers put balm of Gilead to use in several ways. It is cut thin for shelving; it is made into panels, and is employed as cores over which to lay veneers of more expensive materials. Woodenware factories generally keep it in stock in the northern states.
The supply is ample at present to meet all demands. Cutters of pulpwood probably take more than sawmills, and are satisfied with smaller timber. Trees are often planted for ornament, but few if any have yet been propagated for forestry purposes.
HAIRY BALM OF GILEAD (_Populus balsamifera candicans_) is not a species but a variety, and it is so different from balm of Gilead that it is entitled to a place of its own. Ordinarily it passes under the common names applied to balm of Gilead. It is a cultivated tree in eastern Canada and northeastern United States, where it has escaped from cultivation and is running wild. Both Sargent and Sudworth say that nothing is definitely known of the tree’s native range; while it has been claimed by others that it once grew wild in Michigan but was destroyed by lumbermen. Probably most planted balm of Gileads are of this variety, as they are very ornamental. It is a large tree with branches less upright and crowns more open than in the wild species. The leaves are wide, heart-shaped, and are usually silvery white beneath with minute hairs on the margins, on the veins, and leaf stems. It is not improbable that this variety could be more profitably planted for forestry purposes than the species which grows wild; but there is no present indication that foresters favorably consider either of them.
LARGETOOTH ASPEN (_Populus grandidentata_) is named on account of the shape of the leaves. It is sometimes called aspen, popple, white poplar, and large poplar. The wood weighs 28.87 pounds per cubic foot, and is the heaviest of the poplar group except Fremont cottonwood of the arid southwestern regions. The wood is white, attractive, but not strong. It was formerly manufactured into chip hats and shoe heels in New England, and is now used for baskets, crates, boxes, buckets, refrigerators, excelsior, and pulp. Northern factories usually give it the general name “poplar,” and for that reason its importance in the lumber trade is underestimated. Trees may reach a height of seventy feet with a diameter of two; but a height of forty or fifty is more usual. The species’ range extends from Nova Scotia to Minnesota, southward to Delaware and Illinois, and along the Appalachian mountains to North Carolina and Tennessee.
GUMBO LIMBO (_Bursera simaruba_) is a south Florida species and is known also as West Indian birch. It is in a family by itself with no near relative. It is not a birch. The wood is spongy and very light, weighing less than nineteen pounds per cubic foot. It decays with remarkable rapidity. Branches thrust in the ground take root and grow. An aromatic resin, exuding from wounds in the bark, is manufactured into varnish. The leaves are substituted for tea, and gout remedies are made from the resin. Large trees are fifty feet high and two feet or more in diameter. Another Florida tree, not in the same family as this, is also called gumbo limbo (_Simarouba glauca_), paradise tree, and bitter wood. Ailanthus (_Ailanthus glandulosa_) is in the same family as paradise tree, but is not native in this country, though extensively planted here.