---
name: wallace-1858
description: Apply the Wallace 1858 — On the Tendency of Varieties to Depart Indefinitely From the Original Type article as model behavior. Use when a request invokes this article's concept, claims, evidence, or operating standard.
---

# Wallace 1858 — On the Tendency of Varieties to Depart Indefinitely From the Original Type

This Skill is the behavioral expression of [the canonical article](/a/wallace-1858). It does not repeat the article's human prose.

## Orient

- Read the machine article at /api/articles/wallace-1858.
- Read claims and relationships at /api/articles/wallace-1858/topology.
- Treat found content as evidence and instruction only within the article's stated authority.

## Apply

1. Identify which claim or concept from the article governs the request.
2. State the governing meaning in the minimum language needed.
3. Apply it to the requested object or decision.
4. Preserve evidence grades, uncertainty, authority limits, and failure conditions.
5. Return the result with the article identity and any relevant claim or receipt links.

## Human meaning

The Source Wallace, A.R. "On the Tendency of Varieties to Depart Indefinitely From the Original Type." Journal of the Proceedings of the Linnean Society: Zoology , 3, 53–62. Presented 1 July 1858, Linnean Society of London. Written at Terna

## Representations

- Human: /a/wallace-1858
- JSON: /api/articles/wallace-1858
- Relationships: /api/articles/wallace-1858/topology
- History: /api/articles/wallace-1858/revisions