| Preface | p. ix |
| Introduction | p. 1 |
| The Semiotics of Berzelian Chemical Formulas | p. 9 |
| The Various Meanings of Berzelian Formulas | p. 14 |
| Image and Language: The Syntax of Berzelian Formulas | p. 23 |
| Two Cultures of Organic Chemistry in the Nineteenth Century: A Structural Comparison | p. 41 |
| The Area of Research Objects in Early Nineteenth-Century Plant and Animal Chemistry | p. 43 |
| Plant and Animal Substances: A Cross between Natural History and Chemistry | p. 49 |
| The Classification of Plant and Animal Substances | p. 52 |
| "Nature" and "Art" in the Experimental Practice of Plant and Animal Chemistry | p. 58 |
| The Experimental Culture of Organic Chemistry after 1840 | p. 65 |
| The Two Forms of Organic Chemistry Compared | p. 75 |
| Experiments on the Periphery of Plant Chemistry | p. 86 |
| Ether Production and Commercial Pharmacy | p. 88 |
| Interpretive Models of the Formation of Ordinary Ether around 1800 | p. 91 |
| Quantitative Approaches in the Study of Organic Reactions | p. 95 |
| Simplified Quantitative Experiments | p. 106 |
| The Manufacture of an Artificial Oil in the Chemical Laboratory | p. 108 |
| New Attempts to Balance the Masses of Reacting Substances | p. 111 |
| The Overthrow of the Accepted Interpretive Model of the Formation of Ordinary Ether | p. 115 |
| Paper Tools for the Construction of Interpretive Models of Chemical Reactions | p. 118 |
| The Historical Problem | p. 119 |
| Modeling Separate Reaction Pathways | p. 120 |
| The Performative Function of Berzelian Formulas | p. 126 |
| Paper Tools for the Classification of Organic Substances | p. 130 |
| The Structure and Function of Dumas and Boullay's Table | p. 134 |
| Experimentation and the Construction of Formula Models for the "Compounds of Bicarbonated Hydrogen" | p. 137 |
| The Enlargement of Substance Classes by the Construction of Further Formula Models | p. 141 |
| Manipulations of Formulas and Their Significance | p. 145 |
| Reception of the New Classification among European Chemists | p. 147 |
| Paper Tools for Modeling the Constitution of Organic Compounds | p. 149 |
| The Shared Conceptual Preconditions for the Models of Constitution | p. 151 |
| Models of Constitution Prior to 1833 | p. 163 |
| The Controversy | p. 176 |
| The Dialectic of Tools and Goals | p. 188 |
| A Performative Account of Conceptual Development | p. 189 |
| The Creation of Mutual Adjustments and Its Reflection in the New Mode of Justification | p. 202 |
| The Historical Transformation Process | p. 207 |
| Model Objects and Unintended Paradigmatic Achievements | p. 208 |
| The Structural Transformation | p. 216 |
| Paper Tools | p. 231 |
| Filling in the Gaps of Inscription Devices | p. 233 |
| Chains of Inscriptions and Paper Tools | p. 240 |
| Notes | p. 249 |
| Literature Cited | p. 279 |
| Index | p. 299 |
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