Abstract: A multiple tube holder is suspended at the upper end on a frame so that the lower end can pivot through a small arc about a horizontal axis adjacent the upper end of the holder. A motor is connected to the lower end of the holder for pivoting the lower end of the holder through said small arc at a rate of approximately 1800 cycles per minute. A tray means is positioned below the holder for supporting a cooling liquid at a controlled temperature so that the lower end of the tubes on the holder will be immersed in the liquid to prevent destruction of proteins and enzymes released during cell breakage.

Abstract: An apparatus for sequentially dispensing the fluid contents of a plurality of pre-loaded syringes is disclosed. A first means sequentially places each of a plurality of pre-loaded syringes in a dispensing position, each syringe being of the type having a syringe needle, a syringe barrel and a syringe plunger. A second means depresses the syringe plunger of each syringe located in the dispensing position so as to dispense the fluid contents of each syringe positioned thereat. The first means also removes from the dispensing position any syringe whose plunger has been depressed.