940 



Spruce Continued 

 Picea, 71, 164, 179, 181, 564, 



802, 837 



red, Picea rubens, 772, 837 

 Sitka, Picea sitchensis, 366, 369, 



616, 803 

 western white, Picea glauca var. 



albertina, 71 

 white, Picea glauca, 59-60, 121, 



363, 772, 837 

 Squires, John W.: Naval Stores: 



The Forests, 291-298 

 Squirrels and ponderosa pine, 348 

 Stains, shingle, 626 

 STAMM, ALFRED J.: Chemicals 



from Wood, 639-643 

 STANSBURV, HOWARD, quoted, 574- 



575 



Starch, in glues, 637, 638 

 State 



forest nurseries, cooperating in 

 distribution program, 1948, 

 894-895 



forester, aid to owner, 174 

 forestry agencies, 896-898 

 forests. Stanley G. Fontanna, 



390-394 

 parks, 546-547 

 trees, 15-18 



State-Federal aid, planting, 20-21 

 Staypak, uses, 650 

 Stem- 

 borers, damage to shade trees, 



97-98 

 canker, 217 



Stems, products from, 178-180 

 STBUBEN, VON, BARON, work, 705 

 STOCKWBLL, PALMER: Pine Breed- 

 ing in U. S., 147-153 

 STOBCKELBR, JOSEPH H.: Wind- 

 breaks and Shelterbelts, 191- 

 199 



Stomata functions, 3, 6-7 

 STONB, J. HERBERT: Forestry on 

 Large Ownerships in South, 

 279-285 



Storax, from woodland, 180 

 Storms, damage to jack pine, and 



recovery, 315-316 

 STOUT, A. B., work, 148, 154 

 Stratification of seed, 164 

 Streaks, spraying with sulfuric 



acid, 293 

 Stream- 

 flow 



control, 606 



effects of forests, 595, 597, 



599, 600-601 



reflection of watershed, 610 

 improvement for benefit of fish, 



569 

 STRBNGE, F. A.: Prefabricated 



House, 633-636 

 Structures 



lumber uses, 734, 735, 736 



Index 



S tructu res Cont inued 

 maintenance, lumber require- 

 ments 



1950-55, 737 

 1999, 737-738 



Sugar formation in leaf, 3, 4 

 Sugarberry, Celtis laevigata, 63, 69, 



789 



Sugar from cellulose, 650 

 Sugars, product of wood hydroly- 

 sis, 639, 641-642, 643 

 Sulfate wood turpentine, recovery, 



289 

 Sulfite pulp mills, products, 644, 



646 



Sulfuric acid, in turpentining, 293 

 Sumac 



laurel, Rhus laurina, 131 

 mahogany, Rhus integrifolia, 131 

 Rhus, 563 



skunkbush, Rhus trilobata, 131 

 smooth, Rhus glabra, 131 

 staghorn, Rhus typhina, 131 

 sugar, Rhus ovata, 131 

 Sundry Civil Appropriation Act, 



707 



Sunlight- 

 factor in growth, 43, 121-122 

 needs of tree, 3, 4, 6, 7, 8 

 Sunscald, cause, 44 

 Superior N. F., 539, 554 

 Sustained yield 

 correlation with grade of cutting, 



1945, 675 

 maintenance, 108 

 management, 22, 332-333, 675 

 method, 108 

 requirements, 275-276 

 private holdings, 268-269 

 Sustained-Yield Unit Act, 301, 



337, 354 



Suwanee Forest, 290 

 Sweden, forest resources, compari- 

 sons, 742 

 SWEET, C. V.: Putting Unused 



Wood to Work, 643-647 

 Sweetbay 



Magnolia virginiana, 785-786 



See also Magnolia, sweetbay. 



Sweetfern, Comptonia peregrina, 



131 

 Sweetgum 



Liquidambar styraciflua, 53, 61, 



79, 82, 180, 784 

 See also Redgum. 

 SWIFT, LLOYD W.: Forests as 



Wildlife Habitat, 564-571 

 SWINGLE, R. U.: 



Dutch Elm Disease, 451-452 

 Shade Trees for Northeast, 48-60 

 Sycamore 

 American, Platanus occidentalis f 



55, 63, 70, 784-785 

 Platanus, 75, 784, 835 

 Sycamores, canker stain, 45-46 

 Syria, forest resources, compari- 

 sons. 742 



Tallowtree, Sapium sebiferum, 828 

 Tamarack, Larix laricina, 769 

 Tamarisk 



athel, Tamarix aphylla, 820 

 Tamarix, 75, 562 

 Tannin, source, 447 

 Tanoak, Lithocarpus densiflorus, 



812 

 Tar- 

 burning, process, 289 

 production, and uses, 641 

 Tax-reverted lands, State forest 



acreage, 391 



Taxes, and private forestry, 269 

 Taylor Grazing Act, 383 

 Teachers 



and conservation. Julien L. 



Boatman, 658-661 

 forestry, 658-660 

 Teak, Tectona grandis, 434 

 TEBBE, CHAS. L.: Private Forestry 



in West, 275-278 

 Temperature, effect on seedings, 



137 



Tennessee, State tree, 17 

 Tennessee Valley Authority, for- 

 ested lands, 389-390 

 Termites 



damage, 408-409, 433 

 protection from, 412, 434 

 types, 433 



Tetraethyl pyrophosphate, 99 

 Texas 



fire fighting, 527 

 first newsprint mill, 281 

 pines, 151 

 shelterbelts, 194 

 yaupon thickets, 525 

 Thinning 



methods, 219-220 

 naval stores forests, 295-296 

 ponderosa pine, 351 

 Thornapple (hawthorn), Cratae- 



gus, 591 

 Ticks- 

 danger, 27 

 precautions, 558 

 Ties- 

 bridge and switch, requirements, 



1950-55, 736 

 cross 



Engelmann spruce, 650 

 lumber requirements, 1950-55, 



736 



numbers used, 683 

 requirements, 736 

 use by railroads, 24, 724 

 railroad 



consumption and treatment, 



1947, 734 

 requirements, 1950-55, 734, 



736 



timber for, 229 



Tiles, drain use in planting, 93 

 Tillage- 

 importance, 208 

 methods, 207-208 



