The excavation was over for that year by June 2. Evans reported: "only a comparatively small proportion of the tablets were preserved in their entirety," the causes of destruction being rainfall through the roof of the storage room, crumbling of small pieces, and being thrown away by workmen who failed to identify them. A report on September 6 to the Royal Anthropological Institute of Great Britain and Ireland began to use some of the concepts characteristic of Evans' later thought: "palace of Knossos" and "palace of Minos". "Appletons' Cyclopædia of American Biography", 1900, notes that Evans took up Stillman's theme that the palace was the labyrinth of mythology in which the half-bovine son of King Minos lurked. In the report, the tablets are now called a "linear script" as opposed to the "hieroglyphic or conventionalized pictographic script". The linear script has characters that are "of a free, upright, European character" and "seem to have been for the most part syllabic". Evans reasserts the ideographic idea: "a certain number are unquestionably ideographic or determinative."