Boit's experiment on electrostatics

[Carcul]

Hello. On the web address http://etc.usf.edu/clipart/35600/35631/boit_35631.htm there is an apparatus allegedly used by a scientist named Boit. However, I can find no reference elsewhere on the web regarding any scientist with such a name, or even to such experiment. Can someone tell me who was Boit and if possible the date of his experiment? Or Boit is probably a typo and the correct name is Biot?

Thank you.

 

[Meir Achuz]

I put "Boit's experiment" into Google, and found this url and others.
http://www.freefictionbooks.org/books/h/45096-hawkins-electrical-guide-number-one-by-hawkins?start=11