Table of approximate and identical wave-lengths of lines belonging to the spectra of the following elements, viz. :— 
Copper, Silver, Thallium, Indium, Tin, Lead, Tellurium, Aluminium, Cadmium, Arsenic, Antimony, and Bismuth ; 
together with observations on some apparent coincidences (continued). 
ON THE MEASUREMENTS OF WAVE-LENGTHS 
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