 The distinction between 1 and 2 is taken from Augustine’s De doctrina Christiana. Bacon himself claims that he worked out the typology himself prior to finding it in Augustine’s great work on interpretation. Modern scholars, however, believe that he must in some way have borrowed it from Augustine (Maloney 1995). The distinction between 2.1 and 2.2 is taken from the Aristotelian tradition as handed down by Boethius. Type 1 signs occur naturally as part of the agency of nature. Type 2 are signs only because they have been willfully created as such by deliberation; included here are linguistic and non-linguistic signs. However, Type 2.2 are designated ‘natural’ in a sense that is different from Type 1. These sounds and groans are products of nature and happen instinctively but in an “animate” action.