4 8 4 D O C U M E N T 3 3 8 A U G U S T 1 9 2 2 ADft. Written on the verso of Doc. 337. [9 188]. [1]Addressee is identified by the assumption that the letter is a reply to Doc. 332. [2]Dated by the date of Doc. 337. [3]See Doc. 332. [4]On pp. 48–49, Einstein 1922c (Vol. 7, Doc. 71) gives a derivation of the Riemann tensor via par- allel transport of vectors around a loop. See also sketches of this derivation in Doc. 379 on pp. [10] and [19]. [5]The postscript is in Ilse Einstein’s hand.