The New Theory of Heredity

views, revolutionary though they are, except by the biologists. If this theory is true, it is the most important contribution to biology and evolution since the publication of Darwin's Origin of Species. Till this view is thoroughly grasped, it is mere waste of time to speculate how far disease is capable of being transmitted from parent to offspring. The problem of heredity is one which has hitherto baffled investigation. Its phenomena are not in their nature incomprehensible. It is only the great complexity of the subject which has till now rendered it insuperable. Heredity in its common acceptation may be defined as that property of an organism by which its peculiar nature is transmitted to its descen-