Hermann's phenomenon / by G.S. Walpole.

  • Walpole, George Stanley.
Date:
[1914?]
Catalogue details

Licence: In copyright

Credit: Hermann's phenomenon / by G.S. Walpole. Source: Wellcome Collection.

    5/20 (page 136)
    bore throughout was 10 mm., except at the taps, where it was 9 mm. Full- bore taps could not be obtained,' The diagrams represent in elevation and in section the apparatus ready for an observation. It has been Idled and the current is about to be turned on. The filling of the apparatus takes oidy a few minutes; the problem is Fig. 1.—Perspective view of apparatus. (Half scale.) simply to introduce four fluids, indicated in the sectional drawing, in such a manner that the boundary layers between them are sharply defined, and occupy certain positions which are exactly the same in consecutive experi¬ ments. After taking it in the hand with all three taps open, and rinsing it out with distilled water, the tube M and the lower parts of C and D (fig. 2), are rinsed, and then filled, with the “ middle fluid.” Any stray air bubbles b 2