Text ( visual ) : unmediated Spencer's scientific correspondence with Sir J. G. Franzer and others / edited by R. R. Marett and T. K. Penniman. -- Oxford : Clarendon Press , 1932. -- xi, 174 p. ; 23 cm. -- Includes index. -- (BA53918621) ; https://ci.nii.ac.jp/ncid/BA53918621 Author Heading(s): Spencer, Baldwin, Sir ; Marett, R. R. (Robert Ranulph) ; Penniman, T. K. (Thomas Kenneth)