The American Museum of Natural History
Central Park West at 79th Street
New York, N.Y.

Department of Palaeontology:
Walter Granger, D.Sc., Curator of Fossil Mammals
Barnum Brown, Sc.D., Curator of Fossil Reptiles
G. G. Simpson, Ph.D., Associate Curator of Vertebrate Palaeontology
Edwin H. Colbert, Ph.D., Assistant Curator of Vertebrate Palaeontology
Harold E. Vokes, Ph.D., Assistant Curator of Invertebrate Palaeontology
Rachel Husband Nichols, A.M., Staff Assistant
William K. Gregory, Ph.D., D.Sc., Research Associate
Charles C. Mook, Ph.D., Research Associate
Otto H. Haas, Ph.D., LL.D., Research Associate in Palaeontology

June the twenty-sixth
Nineteen hundred and forty-one

Dr. A. Avinoff, Director
Carnegie Museum
Pittsburgh
Pennsylvania.

Dear Dr. Avinoff:-

I received a card from Sydney Prentice yesterday, mailed from California, saying that he would return by way of Texas so that evidently he will not be home by next Wednesday when I have planned to be in Pittsburgh until Friday night. I was anxious to see Prentice because he could have helped me with the pterodactyl material which I am anxious to see, but possibly, in Kay’s and Prentice’s absence someone else can get the material available so that I can study it.

At the same time I am very anxious to see you in regard to the Tyrannosaurus skeleton and will bring photographs and data to discuss the matter with you thoroughly. I now have permission from the President and Administration to sell the type specimen of Tyrannosaurus, the money to be used as an endowment for this Department.

If you are not to be in Pittsburgh next week will you please send me a return letter saying exactly when I can see you.

Sincerely yours,
Barnum Brown

P.S. - For Dr. Avinoff’s Secretary: If Dr. Avinoff is absent when this letter is received will you please drop me a note.