{"query": "Mercator 1668 — Logarithmotechnia", "count": 1, "results": [{"id": "card_chain_mercator_1668", "title": "Mercator 1668 — Logarithmotechnia", "shelf": "codex", "surface": "secular", "snippet": "N. Mercator (1668). Logarithmotechnia. London, 1668. Cited by its record. License as found: public domain (the author died more than a century ago, or the work was published before 1930). What it gave", "authority_tier": "reference", "source": "N. Mercator (1668), London, 1668", "readable": false, "generated": false}], "house": {"door": "FIND", "kind": "cards", "trail": "results", "seal": null, "next_step": {"do": "open the top card", "door": "FIND", "tool": "card_get", "params": {"id": "card_chain_mercator_1668"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}