Preface - Page 2

for every study of that nature tends, when pushed to a certain extent, to harden the heart." (Letter to Miss Edgeworth.)

Faraday's Opinion:--"The education of the judgment has for its first and its last step--Humility." (Lecture on Mental Education, at the Royal Institution.)

Having given my reasons for writing the book, let me conclude by telling you what I have kept out of the book.

It encourages me to think that we have many sympathies in common; and among them, that most of us have taken to our hearts domestic pets. Writing under this conviction, I have not forgotten my responsibility towards you, and towards my Art, in pleading the cause of the harmless and affectionate beings of God's creation. From first to last, you are purposely left in ignorance of the hideous secrets of Vivisection. The outside of the laboratory is a necessary object in my landscape--but I never once open the door and invite you to look in. I trace, in one of my characters, the result of the habitual practice of cruelty (no matter under what pretence) in fatally deteriorating the nature of man--and I leave the picture to speak for itself. My own personal feeling has throughout been held in check. Thankfully accepting the assistance rendered to me by Miss Frances Power Cobbe, by Mrs. H. M. Gordon, and by Surgeon-General Gordon, C.B., I have borne in mind (as they have borne in mind) the value of temperate advocacy to a good cause.

With this, your servant withdraws, and leaves you to the story.

II.

To Readers in Particular:

If you are numbered among those good friends of ours, who are especially capable of understanding us and sympathising with us, be pleased to accept the expression of our gratitude, and to pass over the lines that follow.

But if you open our books with a mind soured by distrust; if you habitually anticipate inexcusable ignorance where the course of the story happens to turn on matters of fact; it is you, Sir or Madam, whom I now want.

Not to dispute with you--far from it! I own with sorrow that your severity does occasionally encounter us on assailable ground. But there are exceptions, even to the stiffest rules. Some of us are not guilty of wilful carelessness: some of us apply to competent authority, when we write on subjects beyond the range of our own experience. Having thus far ventured to speak for my colleagues, you will conclude that I am paving the way for speaking next of myself. As our cousins in the United States say--that is so.

In the following pages, there are allusions to medical practice at the bedside; leading in due course to physiological questions which connect themselves with the main interest of the novel. In traversing this delicate ground, you have not been forgotten. Before the manuscript went to the printer, it was submitted for correction to an eminent London surgeon, whose experience extends over a