The tabletops supported divers forms of industry. Each was a gelid still-life unto itself. About half were given over to the library-building project (drawings weighed down with stones and wood-scraps, ragged quills projecting from frozen ink-wells, half-completed ledgers, clamped timbers surrounded by knee-high piles of wood-shavings) and half to whatever the Doctor was interested in at the moment. Fatio drew up short in front of a table strewn with what appeared to be stones; but as he did not fail to note, each stone was impressed with the skeleton of a leaf, insect, fish, or beast—some of them utterly unfamiliar.