4. Bieliauskas, L.A. 1982. Stress and its Relationship to Health and Illness. Boulder, CO: Westview Press.

5. Buchan, W. 1809. Buchan's Domestic Medicine. London: Alex Hogg; Knight and Compton, printers.

6. Good, J.M. 1827. The Study of Medicine, 4 vols. New York: Collins and Hannay.

7. Buchan, op cit.

8. Gunn, J.C. 1863. Gunn's Domestic Medicine. Cincinnati: Wilstach, Baldwin & Co.

9. Buchan, op cit.

10. Bragg, P. C. 1972. The Miracle of Fasting. Burbank, CA: Health Science.

11. Rodale, J.I., ed. 1975. The Encyclopedia for Healthful Living. Emmaus, PA: Rodale Books, Inc.

12. Ebbell, B. (tr.) 1937. Papyrus Ebers. London: Oxford University Press.

13. Alleyne, J. 1733. A New English Dispensatory. London: Tho. Astley & S. Austen.

14. James, R. 1745. Pharmacopeia Universalis. London: J. Hodges.

15. Duncan, A. 1791. The Edinburgh New Dispensatory. Philadelphia: T. Dobson.

16. Cullen, W. 1802. A Treatise of the Materia Medica. New York: L. Nichols & Co.

17. Thatcher, J. 1813. The American New Dispensatory, 2nd ed. Boston: Thomas B. Wait & Co.

18. Pereira, J. 1843. The Elements of Materia Medica and Therapeutics. Philadelphia: Lea & Blanchard.

19. Potter, S.O.L. 1890. Handbook of Materia Medica, Pharmacy, and Therapeutics. Philadelphia: P. Blakiston, Son & Co.

20. Stevens, A.A. 1924. A Text-book of Therapeutics. Philadelphia: W.B. Saunders Co.

21. Sollman, T. 1936. A Manual of Pharmacology, 5th ed. Philadelphia: W. B. Saunders.

22. Pereira, op cit.

23. Urdang, G. 1944. Pharmacopoeia Londinensis of 1618. Madison: State Historical Society of Wisconsin.

24. Hobbs, C. 1989. "St. John's Wort." HerbalGram 18/19: 24-33.

25. Pereira, op cit.

26. ibid.

27. Sollmann, op cit.

28. Pereira, op cit.

29. Potter, op cit.

30. Pereira, op cit.

31. Hobbs, C. 1989. Feverfew--A Literature Review. HerbalGram 20: 26-35.

32. ibid.

33. McGuigan, H.A. 1928. A Text-book of Phrmacology and Therapeutics. Philadelphia 7 London: W.B. Saunders Co.

34. Martinet, A. 1926. Clinical Therapeutics. Phildelphia: F.A. Davis Co.

35. Cushny, A.R., et al. 1947. Pharmacology and Therapeutics. Philadelphia: Lea & Febiger.

36. American Pharmaceutical Association. 1946. The National Formulary, 8th ed. Washington: American Pharmaceutical Association.

37. American Pharmaceutical Association. 1950. The National Formulary. Washington: American Pharmaceutical Association.

38. Hobbs, C. 1989. Valerian--A Literature Review. HerbalGram 21: 19-35.

39. Bailey, L.H. & E.Z. Bailey. 1976. Hortus Third. Revised by the Staff of the L.H. Bailey Hortorium, Cornell. New York: Macmillan Publishing Co.

40. Hickey, M. & C.J. King. 1981. 100 Families of Flowering Plants. New York: Cambridge University Press.

41. Rendle, A.B. 1963. The Classification of Flowering Plants, 2 vols. Cambridge: Cambridge University Press.

42. Flückiger, F.A. and D. Hanbury. 1879. Pharmacographia. A History of the Principal Drugs of Vegetable Origin. London: Macmillan & Co.

43. Gunther, R.T. 1933. The Greek Herbal of Dioscorides. Hafner Publishing Co. 1968.

44. Pickering, C. 1879. Chronological History of Plants. Boston: Little, Brown & Co. 45. Thompson, A.T. 1830. The London Dispensatory, 5th ed. London: Longman, Rees, Orme, Brown, and Green.

46. Flückiger, F.A. and D. Hanbury. 1879, op cit.

47. Paxton

48. Jaeger, E.C. 1972. A Source-Book of Biological Names and Terms, 3rd ed. Springfield, Illinois: Charles C. Thomas.

49. List, P.H. & L. Hörhammer. 1979. Hagers Handbuch der Pharmazeutischen Praxis. Berlin: Springer-Verlag.

50. Gerard, J. 1633. The Herbal. Revised and enlarged by T. Johnson, reprinted by Dover Publications, NY. 1975.

51. Fuchs, R. 1895-1908. Sämtliche Werke (Collected Works). Munich. Vol. 1, pp. 423, 473; vol. 2, p. 474.

52. Hort, A.F. (tr.). 1948. Theophrastus. Enquiry into Plants, 2 vols. Cambridge: Harvard University Press.

53. Gunther, op cit.

54. Ibid.

55. Hobbs, HerbalGram 21, op cit.

56. Woodville, W. 1790. Medical Botany, 3 vols. London: James Phillips (for the author).

57. Ibid.

58. United States Pharmacopoeial Convention. 1936. The Pharmacopoeia of the United States of America. Easton, PA: Mack Printing Company.

59. American Pharmaceutical Association. 1950. The National Formulary, 9th ed. Washington: American Pharmaceutical Association.

60. Todd, R.G., ed. 1967. Extra Pharmacopoeia--Martindale, 25th ed. London: The Pharmaceutical Press.