[3]These movements were first recorded by Romieu in 1748 and were ascribed by him to electricity.
[4]The breaking-up of films on the surface of water was first noticed by Tomlinson about 50 years ago. He used essential oils, and called the patterns “cohesion figures.”
[5]An interesting discussion on cellular structures of this type may be found in Nature, April 16 to June 11, 1914.

Transcription note

The following minor typographical flaws have been corrected:

Footnotes have been renumbered progressively throughout the book.

*** END OF THIS PROJECT GUTENBERG EBOOK LIQUID DROPS AND GLOBULES ***