The collection consists of 25 letters between C.R. Lanman and his colleagues and former students concerning the study of Sanskrit. There are letters from Franklin Edgerton, J.D.M. Ford, F.P. Graves, C.N. Greenough, G.C.O. Haas, Samuel Hill, A.B. Keith, C.T. Keller, Truman Michelson, Walter Miller, O.H. Mott, W.L. Phelps, G.A. Reisner, Karl Ruprecht, J.M. Stahl, and Fiske Warren.