The specific heat of liquid methyl chloride has been determined over the range -30° to +30° c. The liquid was in a sealed container provided with a heating coil in a re-entrant tube. Stirring was effected by means of an external solenoid operating on an iron armature. The calorimeter was surrounded by an adiabatic enclosure. The quantity determined experimentally included the latent heat of the liquid vaporized and the heat supplied to warm the vapour in the calorimeter. This was reduced to give the specific heat of the liquid following saturation. Comparison of data with those of previous investigators indicates good agreement with those of Eucken and Hauck at -30° c. and the extension of the line representing their results over the range from -80° to -30° c. The results given by Shorthose are slightly higher.