streets to meet the growing demands of the population and to give more light and air to quarters of the city which are densely inhabited. The aesthetic side of the city of Buenos Aires is to be found in its splendid museums, art galleries and public and private libraries, of which there are many of unquestionable merit. Amongst these, special mention should be made of the Natural History Museum, which is of great interest from the point of view of educational value and intellectual progress. The Zoological, Botanical, Mineral, Archeological and Ethnographical specimens, numbering many thousands, have been classified on a scientific basis by eminent authorities over a period of many years and form a collection of objects and curiosities of nature unexcelled for their variety and interest. The National Historical Museum possesses a collection of historic trophies and works, manuscripts, ancient coins and other objects, over 4,000 in number. Here are also halls and galleries, containing portraits of the Viceroys, pictures of naval and military battles, trophies of the war with Great Britain, the room in which San Martin lived and died, furniture, uniforms, arms, decorations and a variety of other articles of great historic interest. On the same order and limited to its expressed purpose, there is a Museum of Arms which contains a collection of weapons with records of their authenticity attached. In this collection there are many specimens of rare weapons and accoutrements of different periods ranging from the fourteenth to the eighteenth centuries. There are, besides, many flags and other articles associated with the wars of different periods. Of much more recent date and, perhaps, also of greater practical interest, is the Natural Agricultural Museum, the objects of which are to promote the knowledge of agriculture by instructive exhibits and to demonstrate the measures best adapted to the scientific methods of cultivation and to overcome the natural drawbacks besetting that branch of national industry. The collection comprises upwards of twenty thousand specimens of agricultural products of every description as well as statistics and information pertaining to rural economy. The libraries of the city are both extensive and numerous and contain in addition to modern works of importance in different languages bibliographical treasures of different periods representing the world's various cycles of literature.