5 0 6 D O C U M E N T S 5 1 0 , 5 1 2 A P R I L 1 9 2 7 510. Verse from Fritz Haber [Biarritz, 8 April 1927] It seems to me, if one takes a good gaze, There is no difference ’tween people and waves! They’re always coming and making foam, They’re heftily pounding and demanding room, If afterward one looks at what they have done Anything useful to see, there’s none! Yet this does not change the people and waves, They are just as pointless as is this poem! F. Haber 511. Appeal to President Calvin Coolidge in Behalf of Sacco and Vanzetti[1] [Einstein et al. 1927c] Dated 10 April 1927 Published 11 April 1927 In: New York Times, 11 April 1927, p. 8. [See documentary edition for English text.] 512. From Leo Szilard Berlin, 12 April 1927 Dear Professor, I was not able to finish the technical work until today and have the following to report. At the patent office we have found nothing suspicious recently, but we did find an already expired patent (from 1880) this one was geared toward an absorption machine and protected sulfurous acid as a coolant in connection with various