pt. 1. Ius naturae generale (editio 2. emendata. 1906) -- pt. 2. Ius naturae speciale.

In a recent JME article, Joona Räsänen makes the case for allowing legal age change. We identify three problems with his argument and, on that basis, propose an improved version thereof. Unfortunately, even the improved argument is vulnerable to the objection that chronological age is a better proxy for justice in health than both legal and what we shall call official age.

Divided into three parts, this work is a record of the direction Kuhn was taking during the last two decades of his life. It consists of essays in which he refines the basic concepts set forth in "Structure"--Paradigm shifts, incommensurability, and the nature of scientific progress.