You have chosen 'Concerning the Author' by Charles Sanders Peirce, 'The Origin of Forms and Qualities' by Robert Boyle and 'On the Conservation of Force' by Hermann von Helmholtz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |