I gladly avail myself of the present opportunity to record my obligations for services rendered by his honor Fernando Wood, Mayor of the city of New York; George W. Matsell, Esq., Chief of Police; and to the Captains of Police in the different wards of the city, namely,

Capt.Michael Halpin,1stward.
"James Leonard,2d"
"James A. P. Hopkins,3d"
"J. Murray Ditchett,4th"
"Daniel Carpenter,5th"
"Joseph Dowling,6th"
"Edward Letts,7th"
"Charles S. Turnbull,8th"
"Abraham Ackerman,9th"
"George W. Norris,10th"
"Peter Squires,11th"
"Galen T. Porter,12th"
"John E. Russel,13th"
"David Kissner,14th"
"George W. Dilks,15th"
"John D. M‘Kee,16th"
"J. W. Hartt,17th"
"George W. Walling,18th"
"Francis J. Twomey,19th"
"Thomas Hannegan,20th"
"Francis C. Speight,21st"
"Daniel Witter,22d"

To Captains Halpin, Hopkins, Ditchett, Carpenter, Dowling, Letts, Turnbull, Kissner, and Dilks, in whose wards is found the greatest amount of prostitution, and upon whom fell the largest share of labor, I am more particularly indebted.

The necessary particulars were finally obtained, and are embodied in [Chapters XXXII. to XXXVII.] of this work, but there was still an important point to determine, namely, what had been done elsewhere, and what was the result of such action, to check prostitution and diminish the ravages of venereal disease. The Continent of Europe presented a field for this inquiry, and to it I turned for the information required, which is given in the various chapters devoted to the several countries in such a form as to show the measures which have been taken, the effect, and the causes which led to legislative interference, contrasted with those other parts of the world where, as yet, no remedial plans have been tried, notwithstanding the necessity which calls for them.

The reader is now in possession of the facts which led to this inquiry. Is it too much to ask his attention to the analysis and exhibition of prostitution as it is at the present time, he being well assured that no assertions will be made that are not supported by good authority, nor any conclusions drawn from doubtful premises?

So far as New York alone is concerned, the evil is known to a large portion of her citizens, although its ramifications are but very imperfectly understood; and the endeavor will be to present all possible information on the matter, and to give a truthful, unexaggerated picture of the depravity. Disagreeable as this must be from the nature of the task, it is hopeful from a belief that the result will tend to public good.

One of the most painfully interesting branches of the inquiry is that relating to the ages of the unfortunate women. Their number includes many who are but mere children; who but recently knelt at a mother’s side, and in infantile accents breathed a prayer to the Almighty; who but recently sprang with eager, joyous bound to the returning footsteps of a father; who, in a happy and innocent home, have but recently given promise of a bright and virtuous life. Therein are also included many who were deprived by death of their natural protectors, and who, thus left unwatched and uncared for, have fallen before the destroyer ere yet the age of womanhood was reached.

The places of their birth form an interesting subject for consideration. In this land the frigid North and sunny South, the busy East and fertile West have each contributed their quota, while foreign countries have sent large numbers to swell the mournful aggregate.

The most useful portion of the subject will be found, it is imagined, in replies to the question, “What was the cause of your becoming a prostitute?” These tend to expose the concealed vices of mankind, and to prove that many of the unfortunate victims are “more sinned against than sinning.” Among the reasons assigned for a deviation from the paths of virtue are some which tell of man’s deceit; others, where the machinations employed to effect the purpose raise a blush for humanity; others, where a wife was sacrificed by the man who had sworn before God and in the presence of men to protect her through life; others, where parents have urged or commanded this course, and are now living on the proceeds of their children’s shame, or where an abuse of parental authority has produced the same effect; and others still, where women, already depraved, have been the means of leading their fellow-women to disgrace. A bare allusion to these wrongs is sickening; but, while the gangrene of prostitution is rapidly extending through society, it becomes an imperative duty to examine its causes completely and impartially.

Another prolific source of female depravity will be exhibited by the several tables showing the description of employment pursued, and the wages received by women previous to their fall, and it will be a question for the political economist to decide how far mere business considerations should be an apology on the part of employers for a reduction in their rates of remuneration, and whether the saving of a small percentage on wages is not more than counterbalanced by the enormous amount of taxation enforced on the public at large to defray the expenses incurred on account of a system of vice which is the direct result, in many cases, of insufficient compensation for honest labor.