And so to work. Daniel exhausted the Terms of Abuse in a few short hours, then moved on to Virtues (intellectual, moral, and homiletical), Colors, Sounds, Tastes and Smells, Professions, Operations (viz. carpentry, sewing, alchemy), and so on. Days began passing. Wilkins became fretful if Daniel, or anyone, worked too hard, and so there were frequent 'seminars' and 'symposia' in the kitchen – they used honey from Christopher Wren's Gothic apiary to make flip. Frequently Charles Comstock, the fifteen-year-old son of their noble host, came to visit, and to hear Wilkins or Hooke talk. Charles tended to bring with him letters addressed to the Royal Society from Huygens, Leeuwenhoek, Swammerdam, Spinoza. Frequently these turned out to contain new concepts that Daniel had to fit into the Philosophical Language's tables.