Berthelot's calorimeter with stirring device.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Berthelot's calorimeter with stirring device. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Berthelot's calorimeter with stirring device. Wellcome Collection. Source: Wellcome Collection.