Everard, J. Foliar analysis. Sampling methods, interpre- 

 tation and application of the results. Q. J. For. 67: 

 51-66; 1973. 



Ferguson, D. E.; Adams. D. L. Guidelines for releasing 



advanced grand fir from overstory competition. Stn. 



Note 35. Moscow ID: University of Idaho, Forestry, 



Wildlife and Range Experiment Station: 1979. 3 p. 

 Gagnon, J. D. Relationship between site index and 



foliage nitrogen at two crown levels for mature black 



spruce. For. Chron. 40: 169-174: 1964. 

 Gessel, S. P.; Lloyd, W. J. Effect of some physical soil 



properties in Douglas-fir site quality. J. For. 48: 



405-410: 1950. 

 Gessel, S. P.: Walker, R. B. : Haddock. P. G. Preliminary 



report on mineral deficiencies in Douglas-fir and 



western redcedar. Soil Sci. Am. Proc. 15: 364-369: 



1959. 



Graham, R. T. Measuring annual growth rings using an 

 electronic measuring device. Res. Note INT-289. 

 Ogden, UT: U.S. Department of Agriculture Forest 

 Service, Intermountain Forest and Range Experiment 

 Station: 1980a. 13 p. 



Graham, R. T. White pine vigor — a new look. Res. Pap. 

 INT-254. Ogden UT: U.S. Department of Agriculture 

 Forest Service, Intermountain Forest and Range 

 Experiment Station; 1980b. 15 p. 



Gysi, C.: Winget, C. H.: Bernier, B. Interactions of P. 

 Mn, and Cu in nutrient uptake by sugar maple. Can. 

 J. For. Res. 5: 105-108; 1975. 



Hacskaylo, J.; Struthers, P. Correction of lime-induced 

 chlorosis in pin oak. Res. Circ. 71. Wooster, OH: Ohio 

 Agriculture Experiment Station; 1959. 5 p. 



Haines. S. G.: Haines, L. W.; White, G. Nutrient compo- 

 sition of sycamore blades, petioles, and whole leaves. 

 For. Sci. 25: 154-160: 1979. 



Hamilton, L. S. Color standardization for foliage de- 

 scription in forestry. J. For. 58: 23-25; 1960. 



Herring, L. J. Studies of advance subalpine fir in the 

 Kamloops Forest District. Res. Note No. 80. Victoria, 

 B.C.; British Columbia Forest Service; 1977. 23 p. 



Herring, L. J.; Etheridge. D. E. Advance amabilis fir 

 regeneration in the Vancouver Forest District. Joint 

 Publ. No. 5. Victoria, B.C.: B.C. Forest Service. 

 Canadian Forestry Service: 1976. 23 p. 



Hopmans, P.: Flinn, D. W.: Aeberli, B. C. Evaluation 

 of soil testing methods for predicting early growth 

 and responses to phosphate fertilizer of Pinus radiata 

 at Heywood, Victoria. Aust. For. Res. 8; 57-61; 1976. 



Hoyle, M. C; Mader, D. L. Relationships of foliar 



nutrients to growth of red pine in western Massachu- 

 setts. For. Sci. 10: 337-347: 1964. 



Ike, Albert F. Symptoms of nutrient deficiency in 

 yellow-poplar seedlings. Res. Note SE-94. Asheville, 

 NC: U.S. Department of Agriculture, Forest Service, 

 Southeastern Forest Experiment Station; 1968. 4 p. 



Johnson. Robert L. Natural regeneration and develop- 

 ment of Nuttall oak and associated species. Res. Pap. 

 SO- 104. New Orleans. LA: U.S. Department of 

 Agriculture, Forest Service, Southern Forest 

 Experiment Station; 1975. 12 p. 



Jones, W. W.; Embleton, T. W.; Piatt. R. G. Leaf 



analysis and nitrogen fertilization of oranges. Citro- 



graph 53: 367-376; 1968. 

 Jorgensen. J. R. Fractionation of nitrogen in three 



forest soils. Soil Sci. Soc. Am. Proc. 31: 707-708; 



1967. 



Keller, K. A.; Tregunna, E. B. Effects of exposure on 

 water relations and photosynthesis of western 

 hemlock in habitat forms. Can. J. For. Res. 6: 40-48; 

 1976. 



Koenigs, J. W. Root rot and chlorosis of released and 

 thinned western redcedar. J. For. 67: 312-315: 1969. 



Krajicek, J.; Brinkman, K.: Gingrich, S. Crown compe- 

 tition — a measure of density. For. Sci. 7: 35-42: 

 1961. 



Leaf, A. L. Growth of forest plantations on different 

 soils of Finland. For. Sci. 2: 121-126; 1956. 



Leaf, A. L.; Madgwick. H. A. I. Evaluation of chemical 

 analysis of soils and plants as aids in intensive soil 

 management. 5th World Forest Congr. Proc. 1: 

 554-556; 1960. 



Leaphart, C. D.; Foiles, M. W. Effects of removing pole- 

 blighted western white pine trees on growth and 

 development of a mixed conifer stand. Res. Note 

 INT-161. Ogden UT: U.S. Department of Agriculture, 

 Forest Service, Intermountain Forest and Range 

 Experiment Station: 1972. 6 p. 



Leaphart, C. D.: Grismer, M. A. Extent of roots in the 

 forest soil mantle. J. For. 72: 358-359; 1974. 



Leyton, L. The relationship between the growth and 

 mineral composition of the foliage of Japanese larch 

 (Larix leptolepsis Murr.). Plant and Soil 7: 167-177; 

 1956. 



Leyton, L. The relationship between the growth and 

 mineral nutrition of conifers. In: K. V. Thimann. ed. 

 The physiology of forest trees. New York: Ronald 

 Press; 1958: 323-345. 



Leyton, L.: Armson, K. A. Mineral composition of the 

 foliage in relation to the growth of Scots pine. For. 

 Sci. 1: 210-218; 1955. 



Little, E. L. Checklist of United States trees (native and 

 naturalized). Agric. Handb. 541. Washington, DC: 

 U.S. Department of Agriculture: 1979. 375 p. 



Loach, K. Shade tolerance in tree seedlings. I. Leaf 

 photosynthesis and respiration in plants raised under 

 artificial shade. New. Phytol. 66: 607-621; 1967. 



Lowry, G. L.; Avard, P. M. Nutrient content of black 

 spruce needles. II. Variations with crown class and 

 relationship to growth and yield. Woodlands Papers 

 No. 3. Point Claire, Que.: Pulp and Paper Research 

 Institute of Canada; 1968. 20 p. 



Lowry, G. L.: Avard, P. M. Nutrient content of black 

 spruce and jack pine needles. III. Seasonal variation 

 and recommended sampling procedures. Woodlands 

 Papers No. 10. Point Claire, Que.: Pulp and Paper 

 Research Institute of Canada: 1969. 54 p. 



Mader, D. L.: Thompson. B. W.; Wells, J. P. Influence 

 of nitrogen on sugar maple decline. Bull. 582. 

 Amherst, MA: Massachusetts Agricultural Experi- 

 ment Station; 1969. 19 p. 



17 



