If it contains anything important, I will consider translating it for the forum.
Please do post the relevant parts or a link if it is available online.
I have put the brochure on my website, including the letter of L.F. over de Linden to the Royal Academy of Sciences. s. http://www.rodinbook...e1874-1879.html . Here you find the next story about the visit 1845. They did not go, but aunt Aafje would send the Frisian book by post. You may decide which parts would be interesting for translation. Just a general note: the Academy of Sciences did not want to investigate the O.L.B., but individual members of the Department of Literature and History condemned the O.L.B. as mystification. The letter of L.F. over de Linden was more to the point than the brochure of Ottema.