748 A TEXT-BOOK OF BOTANY. 



for all future crops with some certainty as to their market value. 

 Experience has shown that cultivated crops command a higher 

 price than the drugs obtained from wild plants, even though their 

 superiority cannot always be demonstrated by analytical means. 

 For instance, no one is trying to determine by an analytical process 

 whether any given lot if tobacco, tea, or cofTee is of superior value, 

 and yet the competent dealer and the discriminating public even 

 recognize the qualities of the grades that are offered. This is 

 even more marked with the products that have been derived thus 

 far from cultivated medicinal plants, and are appreciated by some 

 pharmacists and physicians. 



BIBLIOGRAPHY. 



CULTIVATION OF BELLADONNA: A. F. Sievers, Amcr. Jour. Pharm., March 

 and November, 1914; Francis H. Carr, Ibid., November, 1913; F. A. 

 Miller, Ibid., July, 1913. 



CULTIVATION OF DIGITALIS: E. L. Newcomb, Amcr. Jour. Pharm., No- 

 vember, 1911 ; John A. Borneman, Ibid., December, 1912; F. A. Miller,. 

 Ibid., July, 1913. 



CULTIVATION OF HYDRASTIS : John Uri Lloyd, Proc. A. Ph. A., 1905, p. 307,. 

 and in Jour. A. Ph. A., Vol. I, p. 5; Alice Henkel and G. Fred. 

 Klugh, Circ. No. 6, Bureau of Plant Industry, U. S. Department of 

 Agriculture; J. C. Baldwin, Amcr. Jour. Pharm., April, 1913. 



CULTIVATION OF GINSENG : George V. Nash, Bulletin No. 16, Division of 

 Botany, U. S. Department of Agriculture. 



CULTIVATION OF EUCALYPTUS : A. J. McClatchie, Bulletin No. 35, Bureau 

 of Forestry, U. S. Department of Agriculture. 



CULTIVATION OF PEPPERMINT: A. M. Todd, Proc. A. Ph. A., 1903, p. 277; 

 Alice Henkel, Bulletin No. 90, Bureau of Plant Industry, U. S. De- 

 partment of Agriculture. 



CULTIVATION OF CANNABIS SATIVA : C. R. Eckler and F. A. Miller, Amer- 

 ] our. Pharm., November, 1912. 



CULTIVATION OF CAMPHOR: Circ. No. 12, Division of Botany, U. S. De- 

 partment of Agriculture. 



CULTIVATION OF TEA: Bulletin 234, Bureau of Plant Industry, U. S. De- 

 partment of Agriculture. 



CULTIVATION OF CHICORY: Bulletin No. 19, Division of Botany, U. S. 

 Department of Agriculture. 

 A number of valuable articles by Mitlacher and other members of the 



pharmacognostical department of the University of Vienna have been 



published in Zcitschrift fiir das landwirtschaftlichc J'crsuchswcscn in 



Oestcrreich since 1911. 



