
    In the Matter of Estate of Edith Rockefeller McCormick, deceased. Appeal of Maurice B. Rissman et al., appellants, v. Chicago Title and Trust Company, executor under last will and testament of Edith Rockefeller McCormick, deceased, and McCormick Memorial Institute for Infectious Diseases, appellees.
    Gen. No. 39,516.
    Opinion filed May 16, 1938.
    Wilhartz & Hirseh and Poppenhusen, Johnston, Thompson & Raymond, for appellants; Edward R. Johnston, Samuel E. Hirseh, Albert E. Jenner, Jr., Julian H. Levi, J. S. Greenberg, Eugene H. Nirdlinger and Samuel W. Block, of counsel. Sidley, McPherson, Austin & Burgess, for certain appellee; Edwin C. Austin, Douglas F. Smith, Merritt C. Bragdon and James W. Goultrap, of counsel. Tenney, Harding, Sherman & Rogers, for certain other appellee.
   Mr. Justice McSurely

delivered the opinion of the court.  