Page:Popular Science Monthly Volume 80.djvu/82

This page has been validated.

78

THE POPULAR SCIENCE MONTHLY

Fig. 3. An Inflow as in Fig. 1.

Fig. 4. An Outflow as in Fig. 2.

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Popular_Science_Monthly_Volume_80.djvu/82&oldid=7178202"