[Skip to Content]
[Skip to Content Landing]
August 26, 1893


JAMA. 1893;XXI(9):313-314. doi:10.1001/jama.1893.02420610025004

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.


The recent translation and publication of Prof. Weisman's essays upon heredity, and kindred biological problems, has opened anew the very interesting controversy which has centered about his theories. Dr. Weisman is a professor of physiology and biology at the University of Freiburg, who has for many years made very exhaustive studies of the problems of heredity. His conclusions differ widely from many of the popular theories, and are considered the most scientific and candid studies published. In some of his last essays he points out the errors of his former theories, and the way in which he made them, and asserts that all scientific facts depend on theories which are frequently found to be wrong, and are given up for more accurate hypothesis.

He affirms that theories alone are valueless without a firm basis of facts, and that a collection of facts without some theory of coherence or relation are

First Page Preview View Large
First page PDF preview
First page PDF preview