The status of phonograph records of all kinds as museum material is hardly as high in this country as abroad. In the Sorbonne, in Paris, records of French dialect speech have long been acquired and stored. Records of this kind and moving-picture films, made of permanent material and carefully prepared to show existing conditions would have very high future value. I do not know of any systematic effort to collect them in the United States. Possibly it might be difficult to find permanent films. A moving picture man told me that only perishable ones were being made, as it was not for the interests of the trade that they should last long. There is too much of this spirit in modern industry and trade, and it is responsible for poor materials of all sorts--paint, textiles, dyes and furniture. Permanent carbon photo-prints on paper can be made and doubtless the process can be applied to transparent films if desired. This is really museum material, but if no museum takes it up, I should like to see the Public Library begin the work. We already have the films of our great St Louis Pageant of 1915, which may serve as a beginning. It has been said above that museum material adaptable to library use is so for physical reasons. We may go further and say that the whole difference between a library and a museum is a physical difference rather than one of either object or method. The difference is one of material and of the manner of its display, and these are conditioned by physical facts. The difference between an object and a picture of it is physical. It should not astonish us, then, that when this physical difference is abolished, as it is when the object itself is a picture, or is minimized, as when the object is flat like the picture and resembles it closely, like a textile specimen, the boundary between the museum and the library practically disappears. THE LIBRARY AND THE LOCALITY There is nothing more important than standardization, unless it is a knowledge of its proper limits. Probably no more important step has ever been taken than the introduction of standardization into the industries; the making of nails, screws, nuts and bolts of standard sizes, the manufacture of watches, firearms and machines of all sorts, with standard interchangeable parts. If you take apart a thousand Ford automobiles and mix up the parts a thousand automobiles may be at once assembled from those parts, without any effort at selecting the particular ones associated with each other at first. You know that this principle is now being applied to what are known as “fabricated” ships where certain types of freight-carriers are made standard and then twenty or thirty of a kind are built at once in the same yard, being assembled from steel parts cut out and punched in what are called “fabricating ships”.