We say _exhibited_, for though acting with studied secresy and silence, his life has been so full of good works, that they can not be hid. In these benefactions, Mr. Lenox exercises close discrimination, and for this purpose has for years refused personal applications. This measure, indeed, was necessary, in order to escape a perpetual siege, which would soon have driven any man distracted. He has been in the habit of considering written applications, and of selecting such as seemed worthy of his patronage. Mr. Lenox annually disburses an enormous sum in a most useful as well as most quiet manner. Indeed, his mansion is one of the benevolent institutions of the day, and to all intents and purposes, its occupant is but an actuary driven by perpetual duties and working with assiduity to fulfil an important trust. He is a thoroughly practical man, posted on all the details of business, and, inheriting the peculiar abilities and energy of his father, puts them to the best of use. We may say that the whole purpose of his life is benevolence to all classes. Mr. Lenox will pardon us if we allude to his munificent gifts toward educational enterprise, and especially to those which enrich the institutions of Princeton. He has long been a trustee of Nassau Hall, in whose behalf he has expended large sums, and whose gallery is enriched with his portrait. The Theological Seminary is also an object of his affectionate care. A few years ago, he observed that it needed increased accommodation for its growing library. Carrying out a scheme which had its inception in this circumstance, he quietly employed an architect to draft plans, while at the same time a suitable range grounds was obtained, the materials hauled from New-York, and the present noble edifice, known as the Lenox Library, erected. That library has been of vast assistance to the institution, and not a student visits its alcoves, who does not gratefully remember its founder with a sentiment like that uttered by Gray in reference to Eton: 'Where grateful science still adores Her Henry's sacred shade.' We understand that it has been recently decided to change this structure into an oratory, and to build another library, and we presume that in this also Mr. Lenox takes the initiative. We have referred to the fact that Mr. Lenox only considers written applications, but lest this statement should lead to their increase, we would add a word of explanation. Their number has already become so large as to create a great burden, and the daily task of reading these his begging letters is very annoying. Mr. Lenox is greatly overladen, and we advise any one who may think of his name as a _dernier resort_, to refrain from adding to the labors of an overworked philanthropist. Rest assured, dear reader, that Mr. Lenox will do all possible good with his money, and if it fails to reach you, it may flow to a more deserving object.