I can say with sincerity that I have made my studies carefully and patiently, and when dealing with practical phases of city life I have evolved very little from my own inner consciousness. I have visited scores of typical tenements; I have sat day after day on the bench with the police judges, and have visited the station-houses repeatedly. There are few large retail shops that I have not entered many times, and I have conversed with both the employers and employes. It is a shameful fact that, in the face of a plain statute forbidding the barbarous regulation, saleswomen are still compelled to stand continuously in many of the stores. On the intensely hot day when our murdered President was brought from Washington to the sea-side, I found many girls standing wearily and uselessly because of this inhuman rule. There was no provision for their occasional rest. Not for a thousand dollars would I have incurred the risk and torture of standing through that sultry day. There are plenty of shops in the city which are now managed on the principles of humanity, and such patronage should be given to these and withdrawn from the others as would teach the proprietors that women are entitled to a little of the consideration that is so justly associated with the work of the Society for the Prevention of Cruelty to Animals. Mr. Bergh deserves praise for protecting even a cat from cruelty; but all the cats in the city unitedly could not suffer as much as the slight growing girl who must stand during a long hot day. I trust the reader will note carefully the Appendix at the close of this book. It will soon be discovered that the modern opium or morphia habit has a large place in this volume. While I have tried to avoid the style of a medical treatise, which would be in poor taste in a work of fiction, I have carefully consulted the best medical works and authorities on the subject, and I have conversed with many opium slaves in all stages of the habit. I am sure I am right in fearing that in the morphia hunger and consumption one of the greatest evils of the future is looming darkly above the horizon of society. Warnings against this poison of body and soul cannot be too solemn or too strong. So many have aided me in the collection of my material that any mention of names may appear almost invidious; but as the reader will naturally think that the varied phases of the opium habit are remote from my experience, I will say that I have been guided in my words by trustworthy physicians like Drs. E. P. Fowler, of New York; Louis Seaman, chief of staff at the Charity Hospital; Wm. H. Vail, and many others. I have also read such parts of my MS. as touched on this subject to Dr. H. K. Kane, the author of two works on the morphia habit.