By experimenting with pea plant breeding, Gregor Mendel developed three principles of inheritance that described the transmission of genetic traits before anyone knew exactly what genes were.

Principles of Plant Culture. By Prof. E. S. Goff. Second Edition. Pp. 287. (Wisconsin: Madison. Published by the Author, 1899.) MANY of our county councils have now instituted training colleges ...

Prof. Johnson on the Organic Principles of Plants--Dr. Fitch on the Hossian Fly and Wheat Midge. Share full article. From Our Own Correspondent. Feb. 3, 1860; ...