Mr. Fairfax Harrison, President, Southern Railway Company, Washington, D.C. My dear Mr. Harrison: I am writing to ask your kind cooperation in a good work of international significance, the opportunity to aid which I am sure you will appreciate, and you help in which will be gratefully acknowledged. But I must explain. At the request of Edward VII of England, Mr. Andrew Carnegie authorized me to mae and forward to the British Museum a replica of the skeleton of the colossal dinosaur, the Diplodocus, of which you no doubt have read and which perhaps you have seen. The gift was made in the spring of 1905. Subsequently similar replicas were made and presented to the National Museums of Germany, France, Italy, Austria, Russia, Spain, and Argentina. About two years ago I received from the Meixcan Ambassador a request to supply a replica of the Diplodocus to the National Museum in Mexico. I took up the matter with Mrs. Andrew Carnegie, and the Carnegie Corporation and the funds for making the reproduction were generously provided. The work has been completed. The subject is carefully packed in thirty-six boxes of varying sizes, cubic contents 934.57 ft., weight 10,929 lbs. I now wish to forward the specimen to Mexico. I have decided after careful investigation that the best means of so