With the various members of the faculty of the University of La Plata, and particularly with the members of the Academy of Sciences who were charged with the administration of the Museum, I naturally became well acquainted.  Their warm-hearted welcome to me has left a lasting impression.  Dr. Lafone-Quevado, Director of the Museum; Dr. Herrero-Ducloux, the Assistant Director, Dr. Santiago Roth, the head of the Geological Survey at Buenos Aires; Senon Antonio Nelson, who represents the most advanced and progressive ideas in educational work, who as the guardian of the social life of the young people in the College of the University is accomplishing wonders to create in the minds of the pupils a respect for the higher ideals of the true democracy placed me under special obligations by innumerable acts of kindess.  As the representative of Mr. Carnegie I was tenered a banquet at the leading hotel in La Plata by the Academy of Sciences, and on the eve of my departure I had the great honor to be received as a guest at a dinner given at the Jockey Club by the University of La Plata, which was attended by the Rector of the Universities of La Plata and Buenos Aires, and by the various representatives of the government of the State and the Nation.   Most cordial sentiments of friendship for our own Republic were spoken, to which it became my privilege as a citizen of the United States to replay in terms of equal warmth.  I cannot, in speaking of my impressions of Argentina, fail to record the feeling of gratitude which I necessarily cherish toward the many distinguish