The publications of the establishment are as numerous as those of a great publishing house, and as a matter of fact, they are all given away; although there is a provision for their sale at cost price, I doubt if a thousand dollars’ worth has been sold in five years. There are three series, the aspect of which must be familiar to every observing person who has ever spent a day among the shelves in any American library of respectable standing. The Smithsonian “Contributions to Knowledge,” now including twenty-three stately volumes quarto with 116 memoirs, in all 12,456 pages, and numerous fine plates, the Smithsonian miscellaneous collection, in octavo, containing 122 papers with 20,299 pages, and thirty-five annual reports. The papers included in these volumes are all published separately, the number of separate volumes printed up to this time being above 500. These include papers varying in length from 4 to 1,000 pages, by the most eminent specialists in every branch of science. The most recent work, one now in progress, two volumes having been published, is a systematic work on the botany of North America by Dr. Asa Gray; another is an illustrated work on prehistoric fishing, by Dr. Charles Rau. I have never seen an estimate of the value of the books distributed during the thirty-eight years, but I should judge that it can not fall below $1,000,000, estimating the prices at standing publishing rates. In addition to the direct publications of the Institution let us look at the numerous magnificent volumes of scientific reports printed in more or less direct coöperation with the Institution by the various government surveys and exploring expeditions, at government expense. Who can doubt that the extent of this literature, which is a constant source of comment in foreign scientific journals, where it is desired to stimulate European governments to publish scientific researches in a similar way, is largely a product of the influence of the Institution?