1 Two types of seventeenth-century French levels 9
2 Kircher’s organum mathematicum as depicted in Gaspard Schott’s Organum mathematicum libris IX explicatum (1668) 33
3 Mersenne’s portative organ 63
4 Mersenne’s flue pipe and table of organ pipe diapasons 70
5 Mersenne’s illustrations of an organ wind-chest and clavier mechanisms 75
6 Mersenne’s perfect twenty-seven-key organ clavier 87
7 Goclenius’s schematic tree summarizing the concept of habitus 109
8 Goclenius’s schematic tree summarizing the concept of habitus intellectus 110
9 Chérubin d’Orléans’s lens-grinding machine (1671) 136
10 Rational and geometric weaving patterns 146
11 Jacques de Lajoüe, Le cabinet de physique de Bonnier de La Mosson, 1734 155
12 Two globes dated ca 1757 from Benjamin Martin 174
13 Musical automaton clock manufactured in London around 1780 by the watchmaker William Carpenter 177
14 Pendulum clock known as La Création du monde, 1754 182
15 Fraunhofer’s great refractor as seen after its final restoration 185
16 Archimedean screw 191
17 Artificial eye 191
18 Connecting vessels 191
19 A wooden prismatic resonator from ca. 1876 217
20 Cloud chamber used by J. C. Street and E. C. Stephenson at Harvard for their discovery of the muon 220
21 Quantum toys 221
22 Mechanical molecular model made in May 1965 by a Harvard student, Philip L. Berneburg 225
23 Instrument acquisitions over time at the Collection of Historical Scientific Instruments (CHSI), Harvard University 232
24 Instrument materials over time at the Collection of Historical Scientific Instruments (CHSI), Harvard University 232
25 A map of the province of Québec showing where botanical specimens were collected 235
26 A graph showing when botanical specimens were collected 236
27 Two graphs showing different representations of the number of collected specimens per annum 238–239
28 Six Microphones installation 244
29 A reverse-view of the exhibit project’s second part using rapid prototyping technique 245