This is not the place for a detailed account of the development of the Cooper Union, or even of its present scope and prospective operations. Such an account would worthily occupy a separate volume; for the institution, in the hands of its wise directors, was a pioneer and model in many respects in which later enterprises, with larger means, have, perhaps, surpassed it. I must content myself here with brief mention of a few particulars.

The immense free reading-room, with its average daily attendance of nearly 1500 to 2000 persons, was Mr. Cooper's special delight; and well it might be so; for the sight is one almost without a parallel—not in the architecture, size, or furnishing of the place, but in the extent and constancy of its use by the public. Entrance is free to all who are not unclean, intoxicated, or disorderly. In the main, the privileges thus given are not abused, but occasionally the evils almost inseparable from so large an attendance have been felt. At one time, the curator earnestly represented to the trustees the necessity of doing something to check the mutilation of books—a practice which public librarians know well as one of their most troublesome foes. It appeared that some unknown persons, who combined a love of the beautiful in language with a barbaric ignorance of it in conduct, were accustomed to slash out with their penknives favorite passages of poetry for preservation, treating in this matter newspapers and books alike. It was found difficult to keep whole the volumes of Tennyson and Longfellow. But a more frequent and injurious practice was the cutting out of plates from illustrated books. This was not for love of art, as the other for love of poetry. The object was to sell such engravings for two or three cents each to the print-shops in the city, where they were bought by refined amateurs, for the purpose of "illustrating" special volumes. This fashionable hobby has been the indirect cause of the ruin of many a choice book; and buyers of fine old editions are well aware that they must look well to their bargains, lest they find that the thief, at the bidding of the "collector," has plundered the volumes of the plates which once adorned them.

When this subject came up for discussion in the board of trustees, Mr. Cooper was so full of pity for the poor fellows, who were obliged to sell stolen engravings at two cents a piece to keep body and soul together, that he could scarcely be brought to take a severe view of the offense. Nor was he willing (and in this his fellow-trustees agreed with him) to impose any restriction or censorship upon admittance to the reading-room. Even if the books suffered, the room must continue to be free. The great mass of well-behaved people must not be annoyed by measures intended to exclude a few rogues. The result vindicated the sagacity, as well as the charity, of this view. The officers in charge, not being permitted to adopt any sweeping measures of prevention, simply redoubled their vigilance, and finally caught one or two offenders and "made examples of them;" and the nuisance was immediately abated, though perhaps not entirely and permanently abolished.

The report of 1900, after mentioning the great (legitimate) wear and tear of the books, of which 12,000 had to be re-bound, adds:—

"The decorum of the visitors has been excellent, and it is remarkable, in view of such a very large number of persons visiting the room, that so few mutilations and injuries occur to the periodicals and books, and that so few books, probably not more than half a dozen in the course of a year, and those of small consequence, are stolen."

It seems then, after all, that Peter Cooper's faith in the people was justified.

The great hall in the basement is another noteworthy feature, and worthy of wider imitation than it has yet received. Such a hall, if located upstairs in such a building, would have been open to three objections: it would have monopolized, for occasional use only, space which was required for constant use; it would have been intolerably noisy, by reason of the roar and rattle in the streets which surround the building on all sides; and it would have been dangerous, as all such places are, when great audiences must make their exit by going down stairs. Nothing has ever been invented that will prevent people from being crushed and trampled when they are crowding down a stairway. In all these respects, the great hall of the Cooper Union is admirable. It occupies space not otherwise valuable. It is quiet, and acoustically perfect. The means of exit and entrance are ample and safe. Even in case of an unreasoning panic, there is little danger that a crowd, tumbling up the stone stairways to the street, would cause the horrible maiming and killing which so often attend the efforts of a frightened multitude to get down. Finally, the ventilation is excellent, for the simple reason that natural or automatic ventilation of such a large, low basement room could not be expected, and consequently mechanical ventilation by means of a large fan, run by steam power, was provided. The efficiency of this system has sometimes been severely tested. On one occasion, during a scientific lecture, the experimental illustrations of which were on a large and imposing scale, the learned professor on the platform had the misfortune to crack an immense glass jar, in which he was exhibiting the brilliant combustion of phosphorus in oxygen gas. The white fumes of phosphorous acid floated out into the air, and began to diffuse themselves through the hall towards the ventilation outlets at the sides and rear. To one who knew the irritating nature of these fumes it seemed inevitable that the hall must be emptied of its crowded audience in a few minutes. Already coughing had begun on the front seats, when Mr. Hewitt, who was seated on the platform, quickly rose, and pulling a cord, reversed the currents of ventilation and opened a new outlet into the street, behind and above the platform. The curling clouds of vapor paused, wheeled, and retreated, and in another minute the air was perfectly pure. The lecturer had not even been interrupted. It was a beautiful and timely "experiment" not on the programme, and, to use the words of one who was present, "It was just the sort of thing to please Peter Cooper to the bottom of his soul."

The great hall was dedicated from the beginning to free speech. Peter Cooper may have overestimated the value of mere talk. As I have already told, it was his first notion that conversation and discussion were the chief things required in education. He came to see that study, instruction, and training were equally essential, but he never surrendered his faith in free speech; and the great hall was at the service of all sects, parties, and classes, religious, philosophical, political, scientific, literary, or philanthropic. It has been the scene of many memorable meetings and addresses. But nothing in its history has been more useful and noteworthy than the series of free popular lectures which were given, as part of the operations of the Cooper Union, within its walls. These lectures began in 1868, and continued until they were adopted by the city as part of the general scheme of free lectures which has been so successful during the last few years. In awarding due praise to the promoters and managers of this plan, it should not be forgotten that the Cooper Union inaugurated it, and maintained it for many years, during which the free Saturday night popular lectures in its great hall were the only ones of their kind. They covered many sciences and arts, chronicles of travel and themes of history and literature. The most eminent authors, teachers, investigators, travelers, and orators of the generation were comprised in the list of lecturers; and many of them performed this service without other reward than the consciousness of contributing to a noble charity, and the evident gratitude of the vast and eagerly attentive audience.

Mr. Cooper loved to attend these Saturday evening lectures, and an arm-chair was always ready for him on the platform. Many a speaker on that platform has been surprised by an untimely outburst of applause and has turned to discover the cause in the entrance of the beloved founder. Often the subject of the evening was beyond his experience or knowledge, but that made no difference in his respectful attention, or in the benign satisfaction with which he contemplated the attentive audience, and realized that they were receiving benefit. I have often felt that the scene exhibited almost every Saturday night for many years during the latest period of his life could be equaled only by the spectacle presented at Ephesus, where the aged St. John the Divine fronted the congregation of loving believers, always with his one last message, "Little children, love one another."