Absorption and Other Cells
   The cylindrical and spherical cells at the right is in the Garland Collection at Vanderbilt University, and the one at the right below is at Washington and Lee University. At the left below is a cell at the United States Military Academy. 

   These cells were used for the study of absorption spectra of iodine, bromine, hypo-nitrous acid and other gases. The spherical cells are listed in the 1888 "Illustrated Catalogue of Instruments used in Physical Optics" published by James W. Queen and Co. of Philadelphia at $7.00. 

   This is a refraction cell used to hold volatile liquids, such as carbon disulphide, for use in a prism spectrometer. It has been made by grinding off two corners of an alcohol burner and attaching glass windows. 

   The cell is in the Jack Judson Collection at the Magic Lantern collection in San Antonio, Texas.

   Electrochemical reactions can be projected using cells like the one at the right. Electrodes extending into the solution inside the cell are connected to the terminals of a battery.

   This unmarked cell is in the Jack Judson Collection at the Magic Lantern Museum in San Antonio, Texas.


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