The best years of my life have been passed in the ardent study of medical and chemical science. Chemistry especially has always had irresistible attractions for me from the enormous, the illimitable power which the knowledge of it confers. Chemists--I assert it emphatically--might sway, if they pleased, the destinies of humanity. Let me explain this before I go further.

Mind, they say, rules the world. But what rules the mind? The body (follow me closely here) lies at the mercy of the most omnipotent of all potentates--the Chemist. Give me--Fosco-- chemistry; and when Shakespeare has conceived Hamlet, and sits down to execute the conception--with a few grains of powder dropped into his daily food, I will reduce his mind, by the action of his body, till his pen pours out the most abject drivel that has ever degraded paper. Under similar circumstances, revive me the illustrious Newton. I guarantee that when he sees the apple fall he shall EAT IT, instead of discovering the principle of gravitation. Nero's dinner shall transform Nero into the mildest of men before he has done digesting it, and the morning draught of Alexander the Great shall make Alexander run for his life at the first sight of the enemy the same afternoon. On my sacred word of honour it is lucky for Society that modern chemists are, by incomprehensible good fortune, the most harmless of mankind. The mass are worthy fathers of families, who keep shops. The few are philosophers besotted with admiration for the sound of their own lecturing voices, visionaries who waste their lives on fantastic impossibilities, or quacks whose ambition soars no higher than our corns. Thus Society escapes, and the illimitable power of Chemistry remains the slave of the most superficial and the most insignificant ends.

Why this outburst? Why this withering eloquence?

Because my conduct has been misrepresented, because my motives have been misunderstood. It has been assumed that I used my vast chemical resources against Anne Catherick, and that I would have used them if I could against the magnificent Marian herself. Odious insinuations both! All my interests were concerned (as will be seen presently) in the preservation of Anne Catherick's life. All my anxieties were concentrated on Marian's rescue from the hands of the licensed imbecile who attended her, and who found my advice confirmed from first to last by the physician from London. On two occasions only--both equally harmless to the individual on whom I practised--did I summon to myself the assistance of chemical knowledge. On the first of the two, after following Marian to the inn at Blackwater (studying, behind a convenient waggon which hid me from her, the poetry of motion, as embodied in her walk), I availed myself of the services of my invaluable wife, to copy one and to intercept the other of two letters which my adored enemy had entrusted to a discarded maid. In this case, the letters being in the bosom of the girl's dress, Madame Fosco could only open them, read them, perform her instructions, seal them, and put them back again by scientific assistance--which assistance I rendered in a half-ounce bottle. The second occasion, when the same means were employed, was the occasion (to which I shall soon refer) of Lady Glyde's arrival in London. Never at any other time was I indebted to my Art as distinguished from myself. To all other emergencies and complications my natural capacity for grappling, single-handed, with circumstances, was invariably equal. I affirm the all-pervading intelligence of that capacity. At the expense of the Chemist I vindicate the Man.

Respect this outburst of generous indignation. It has inexpressibly relieved me. En route! Let us proceed.

Having suggested to Mrs. Clement (or Clements, I am not sure which) that the best method of keeping Anne out of Percival's reach was to remove her to London--having found that my proposal was eagerly received, and having appointed a day to meet the travellers at the station and to see them leave it, I was at liberty to return to the house and to confront the difficulties which still remained to be met.

My first proceeding was to avail myself of the sublime devotion of my wife. I had arranged with Mrs. Clements that she should communicate her London address, in Anne's interests, to Lady Glyde. But this was not enough. Designing persons in my absence might shake the simple confidence of Mrs. Clements, and she might not write after all. Who could I find capable of travelling to London by the train she travelled by, and of privately seeing her home? I asked myself this question. The conjugal part of me immediately answered--Madame Fosco.

After deciding on my wife's mission to London, I arranged that the journey should serve a double purpose. A nurse for the suffering Marian, equally devoted to the patient and to myself, was a necessity of my position. One of the most eminently confidential and capable women in existence was by good fortune at my disposal. I refer to that respectable matron, Madame Rubelle, to whom I addressed a letter, at her residence in London, by the hands of my wife.

On the appointed day Mrs. Clements and Anne Catherick met me at the station. I politely saw them off, I politely saw Madame Fosco off by the same train. The last thing at night my wife returned to Blackwater, having followed her instructions with the most unimpeachable accuracy. She was accompanied by Madame Rubelle, and she brought me the London address of Mrs. Clements. After- events proved this last precaution to have been unnecessary. Mrs. Clements punctually informed Lady Glyde of her place of abode. With a wary eye on future emergencies, I kept the letter.

The same day I had a brief interview with the doctor, at which I protested, in the sacred interests of humanity, against his treatment of Marian's case. He was insolent, as all ignorant people are. I showed no resentment, I deferred quarrelling with him till it was necessary to quarrel to some purpose. My next proceeding was to leave Blackwater myself. I had my London residence to take in anticipation of coming events. I had also a little business of the domestic sort to transact with Mr. Frederick Fairlie. I found the house I wanted in St. John's Wood. I found Mr. Fairlie at Limmeridge, Cumberland.