[182] _U. S. D. A. Seeds and Plants Imported_ Invent. =13=:173. 1908. [183] _Trans. Hort. Soc. Lond._ =3=:380-387. 1820. [184] _Ibid._ =5=:525-560. 1824. [185] For a brief history of the life and pomological work of Gilbert Onderdonk, the reader is referred to _The Plums of New York_, page 392. [186] _U. S. D. A. Rpt._ 648-651. 1887. [187] _Tex. Sta. Bul_. =39=:826-832. 1896. [188] _Am. Pom. Soc. Rpt._ 110. 1887. [189] Waugh, F. A. _Systematic Pomology_, 178. 1903. [190] Hume H. Harold _Fla. Sta. Bul._ =62=: 1902. [191] Gould, H. P. _Md. Sta. Bul._ =72=:129. 1901. [192] Wright, Charles _Cyc. of Am. Hort._ =3=:1240. 1900. [193] Gould, H. P. _Md. Sta. Bul._ =72=:130. 1901. [194] Shallcross, J. T. _Md. Hort. Soc. Rpt._ =1=:17. 1898. [195] Wright, Charles _Cyc. of Am. Hort._ =3=:1238. 1900. [196] _Am. Farmer_ July, 1878. [197] Rutter _Cult. & Diseases of the Peach_ 81, 82. 1880. [198] _New England Farmer_ =7=:174. [199] _Mag. Hort_. =5=:12. [200] _Ohio Hort. Soc. Rpt._ 61. 1869. [201] _Jour. Lond. Hort. Soc._ 221. 1846; l. c. 265. 1852. [202] _Mag. Hort._ 475. 1851. [203] _Horticulturalist_ 286, 472. 1853. [204] _Horticulturist_ =1=:382. 1847. [205] _Rev. Hort._ 11. 1861. [206] _Trans. Hort. Soc. Lond._ =4=:512-513. 1822. [207] Prince, Wm. _Treat. on Hort._ 16. 1828. William Prince, second of the name in American pomology and third proprietor of the celebrated Prince nurseries at Flushing, Long Island, was born November 10, 1766, and died April 9, 1842. His grandfather, a French Huguenot, was the founder of the establishment of which he became owner, and in which he made his reputation. Under his father, the first William Prince, the nursery at Flushing developed into a great commercial nursery, a private experiment station, a testing ground for American and foreign fruits and a botanic garden of American plants. The mantle dropped by William Prince, the father, at his death in 1802, fell upon the shoulders of William Prince, subject of this sketch, then just reaching the prime of life and one of the most brilliant and versatile pomologists the country has known. William Prince continued most successfully the work of his father in breeding new varieties, domesticating native plants and importing foreign fruits and ornamentals. During his supervision the Prince Nursery reached the height of its fame. It was conducted less for money than for love of the work. An attempt was made to grow every American and European plant-species having horticultural value. The catalogs published from the nursery by William Prince are among the best horticultural and botanical contributions of the first half of the Nineteenth Century. Besides these, William Prince is the author of the _Treatise on Horticulture_, published in 1828, and gave assistance to his son, William Robert Prince, in preparing his _Pomological Manual_ published in 1832. In the description of varieties in this text it will be found