Was something written on them?

According to Kirkwood, Meteoric Astronomy, a substance like charred paper fell in Norway and other parts of northern Europe on Jan. 31, 1686. In the Annals of Philosophy, 16-68, the substance was described as “a mass of black leaves, having the appearance of burnt paper, but harder, and cohering, and brittle.”

–Charles Fort, The Book of the Damned, p.57 (The Complete Books of Charles Fort, Dover, c1974).

Curious if true

Fort records falls of viscid substance in connection with meteoritic phenomena, as cataloged by R. P. Greg, in the years 1652, 1686, 1718, 1796, 1811, 1819 and 1844. In the Report of the British Association, 1855-94, Greg writes that on the night of Oct. 8, 1844, two people near Coblenz saw “a luminous body fall close to them. They returned next morning and found a gelatinous mass of grayish color.”

–Charles Fort, The Book of the Damned, p49 (The Complete Books of Charles Fort, Dover, c1974).