Abstract: Procedure for the preparation of organic tissue samples for the further examination and clinic or scientific study thereof and the corresponding machine of the type having a plurality of circularly arranged beakers (3) turntable containing different processing liquid compositions (2) and a basket (1) containing the samples, consisting said procedure in the addition of the agitation phase of the stratified composition of the processing liquid, which is performed through a clockwise self-rotating rotary movement of the basket (1) immediately followed by a further movement in the opposite direction; the gravity draining phase is replaced by the centrifugal phase and the further optional translation thereof to eventually be received in the next beaker carrying a different composition.

Abstract: Apparatus and method of generating flat liquid sheet sprays by means of simple cylindrical orifices. One form is a container having an interior closed end with the exception of an orifice disposed eccentrically of the closed end to enable generation of a fine spray through the orifice. The orifice is rounded on the outside of the closed end. The orifices may extend radially outwardly instead or may take other forms.