| Description | 'Dear Mr Harrison, I enclose a letter with translation. I have simply acknowledged it politely. He is a lunatic. Yours truly, Francis Darwin'.
Enclosed is a letter from [Adolfo Valero], Buenos Aries, dated 4 October 1904, in Spanish, and a typescript English translation of the same letter. Valero discusses his ideas regarding the ether, radiation and his poverty preventing him to carrying out scientific work. |