Cadrans solaires, [70]

Café, [335]

Calcul, [244], [297], [356]

Calculateur, [423], [466]

Calcul infaillible, [149], [396]

Calcul infinitésimal, [123], [128], [139], [345]

Calcul mental, [67], [372]

Calculs des ouvriers, [243]

Calendrier, [70], [320]

Calinon, [244], [531]