Sweet-Clover Seed

by H. S. Coe; John N. Martin

([27]) Die Hohenheimer Samenritzmachine.

1894. In Braunschweig. Landw. Ztg., Jahrg. 62, Nr. 19, p. 86. illus.

([28]) Müller, Hermann.

1883. The fertilisation of flowers, transl. by D'Arcy W. Thompson. 669 p., 186 fig. London. Bibliography, p. 599-630.

([29]) Nobbe, Friedrich.

1876. Handbuch der Samenkunde. 631 p., 339 fig., 1 pl. Berlin.

([30]) ————, and Haenlein, H.

1877. Ueber die Resistenz von Samen gegen die äusseren Factoren der Keimung. In Landw. Versuchs Sta., v. 20, p. 71-96, 13 fig.

Pammel, L. H.

([31]) 1899. Anatomical characters of the seeds of Leguminosae, chiefly genera of Gray's Manual. In Trans. Acad. Sci. St. Louis, v. 9, p. 91-275, pl. 7-35. Bibliography, p. 224-257.