That is the testimony of the late head of the Criminal Investigation Department: an Assistant Commissioner of Police, and Barrister at Law.

Let us now return to Dr. Potts, of Birmingham, for a moment. In the speech above quoted Dr. Potts gave the causes of mental defects—which are the causes that lead these poor creatures to immorality and to crime, as follows:

1. Defective nutrition in early years of life.

2. Hereditary tendency to consumption.

3. Descent from insane or criminal stock.

4. Chronic alcoholism of one or both parents.

We have here, added by Dr. Potts, another cause of degeneracy: that is, defective nutrition in early life. In plain words, improper feeding, or semi-starvation.

Later, when we come to deal with environment, I shall show that there are many other causes of degeneration and of crime. But here I only point out that atavism and degeneration account for from thirty to forty per cent, of the criminals of the present day. That atavism and degeneration are forced upon the unborn child by heredity; that therefore these forty per cent, of our criminals are unfortunate victims of fate, and are no more blameworthy nor wicked than the victims of a railway accident, or an earthquake, or an epidemic of cholera or smallpox.

They should, as I claimed before, be pitied, and not blamed; they should be helped, not punished.

Unhappy, unblest atavistic man, that in lieu of love has only lust, in lieu of wisdom only cunning, in lieu of power violence; and with a whole world to walk in, as in a garden fair, lies wallowing hideously in the foul dungeon of his own unlightened soul.