Copy letter from Herbert Rix, to Dr David Bierens de Haan, Leiden, Holland Oldenburgh's draft is very rough, but the date of June 23 is perfectly clear. No doubt he drafted the letter on the 23rd and did not make the fair copy till the 27th. Rix is sorry de Haan has been put to expense but it could not be avoided. Apologises for the short postage. 26 April 1895