Leadership of the Patent Office 53

of its supply. Many of the plants failed to mature because they
had been distributed indiscriminately, but those in the govern-
ment propagating garden grew successfully.
 Other introductions of this period include the seedless pome-
granate of which 900 cuttings were distributed in 1859. Robert
Fortune sent camphor seeds from China. Seeds of the carob tree,
widely grown in Spain and southern Europe, were introduced
in 1854. The Persian walnut came from France. An article of
several pages containing information about the plant, and a long
article listing many other plants is included in the Report of 1854.
Many plants introduced in later years were first mentioned in this
report in an effort to arouse interest in their cultivation and secure
cooperation from travelers in foreign lands in securing specimens.

 BIBLIOGRAPHY
1. USDA Monthly Report, July, 1871, p. 259.
2. U.S. Patent Office Annual Report, 1838-39.
3. Commissioner's Report, 1866, p. 524; Monthly Report, March-April, 1871, p. 128.
4. Hagedorn, C. F. to Edmund Burke, Commissioner of Patents. Letters, Reports
 and Essays of the Agricultural Section of the Patent Office, 1839-60, Vol. I.
 USDA Archives.
5. U.S. Statutes at Large, 76, 95.
 Powell, F. W., Bureau of Plant Industry, Its History, Activities, and Organiza-
 tion, Baltimore: Johns Hopkins Press, 1927.
6. Ball, Carleton R., "The History and Distribution of Common Sorghum Varie-
 ties," USDA, Bureau of Plant Industry, Bulletin No. 175.
7. Olcott, H. S., Sorgho and Imphee: The Chinese and African Sugar Canes, New
 York: A. O. Moore, 1857.