Illustrations from Vaught's Practical Character Reader, a book on phrenology by L. A. Vaught published in 1902. As he confidently states in his Preface:

The purpose of this book is to acquaint all with the elements of human nature and enable them to read these elements in all men, women and children in all countries. At least fifty thousand careful examinations have been made to prove the truthfulness of the nature and location of these elements. More than a million observations have been made to confirm the examinations. Therefore, it is given the world to be depended upon. Taken in its entirety it is absolutely reliable. Its facts can be completely demonstrated by all who will take the unprejudiced pains to do so. It is ready for use. It is practical. Use it.

The theory that one can ascertain a person's character by the shape of their features is disturbing to say the least.

You can see the book in its entirety, including many more diagrams, over in our post in the Texts collection.