Abstract: An apparatus for volumetrically dosing particulate matter, such as tea to be loaded into bags, comprises a housing whose lower part is kept filled through a hopper with the mass of particles above the top of a dosing drum which is intermittently rotatable just above the housing bottom about a generally vertical axis and has several outwardly open, angularly equispaced through-going peripheral notches of constant horizontal cross-section. A discharge compartment of the housing accommodates a segment of the drum, including two of its notches, and has an entrance gate closely hugging the drum surfaces so that only the particles occupying a notch can reach that compartment.