The amount of SOa absorbed by individual drops of wcrter and of sever81 hydrocarbons has been measured continuously during their formation at the tip of 8 capillary tube. The times of formation varied between 1 and 49 seconds. A aimpliiled calculation using the " penetration " theory explains the experimetal results fairly well. At long formation times, however, the rate of absorption is somewhat increased by free convection currents, whereas at short times of formation 8 considerable increase in absorption r8te may be found 8s a consequence of the mixing produced by the jet of liquid leaving the capillary. A tentative criterion for the occurrence of the Latter effect is given. K68um&L8 quantiti de SO, absorb& p8r les gouttes lndividuellea d'esu et de plusieurs hydrocarbures a t% mesun% dune f89on continue pendant leur formation B l'extr&niti d'un tube capillaire. La p&iode de formation de la goutte 8 QC variee entre 1 et 40 secondes. Un calcul simpliil14 base sur la thdorie de la " p&&ration " explique asses bien les r&ultats exp&imentaux. Cependent, pour de longues p&odes de formation, 1s vitesse dabsorption est augment& l&$uement par des cour8nt.s libres de convection, tandis que B des p&iodes courtes de formation on peut trouver une augmentation consid&8ble de la vitesse d'absorption par suite du melange produit par le jet de liquide quittent le capill8ire. On propose un critere ddtermirmnt la n8issence de ce deiier effet. _