Description | Three printed figures labelled figures 1, 1 [sic] and 3, the first two showing a hand holding a round frame within which a soap-film is contained. A large soap bubble is shown first being supported by the film and then passing through the film. In figure 3 a large soap bubble rests on a glass plate, and becomes 'flattened down upon the glass plate by the operation of progressive cohesion or capillarity [...] after this has taken place we have a partial sphere which must contain all the air previously contained by the entire sphere'. Morris uses these figures to illustrate that the film 'in a certain state [is] capable of becoming a perfect limiting membrane for the preventing of the egress of the soap sphere', and that 'the film has been subjected to great extension and expansion concurrently with the attraction to the plate.'
Subject: Physiology |