Ice calorimeter Inclined plane Inclined tubes for water and mercury Inclinometer and declinometer Ingenhousz. Conductivity box Insulated cylindrical conductor Insulating stand Italian cell   Joule effect   Kirchoff-Bunsen's spectroscope   Lane's jar Laplace's ice calorimeter

Leclanché cell Leidenfrost's drops. Calefaction Lenses. (Universal holder) Leslie's apparatus Leslie's cube Leyden jar Linear expansion apparatus Locatelli's lamp Lodge touned jars