The pears of New York

by U. P. Hedrick

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Dochnahl, Führ. Obstkunde

Der sichere Führer in der Obstkunde auf botanisch-pomologischen Wege oder Systematische Breschreibung aller Obstsorten. Von F. J. Dochnahl. Vier Bände. Nürnberg: 1855-60. Vol. 2, 1856. Pears.

Downing, Fr. Trees Am.

The Fruits and Fruit Trees of America: or the culture, propagation, and management, in the garden and orchard, of fruit trees generally; with Descriptions Of All The Finest Varieties Of Fruit, Native and Foreign, Cultivated In This Country. By A. J. Downing. (Illustrated.) New York & London: 1845. Copyright, 1845. Second edition, same text, with colored plates, 1847. First revision, by Charles Downing. New York: 1857. Copyright, 1857. Second revision by Charles Downing. New York: 1869. First appendix, 1872. Second appendix, 1876. Third appendix, 1881.

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