75 



equal to the yellow, and the green more languid; 

 whereas, in the glasses, the blue was inferior to 

 the green. 



Of all the liquor to which he put the Phloades, 

 milk was rendered the most luminous. A single 

 Phloas made seven ounces of milk so luminous, 

 that the faces of persons might be distinguished 

 by it, and it looked as if it was transparent. 



Air appeared to be necessary to this light; 

 for when Beccarius put the luminous milk into 

 glass tubes, no agitation would make it shine, 

 unless bubbles of air were mixed with it. Also 

 Montius and Galeatius found, that, in an ex- 

 hausted receiver, the Phloas lost its light, but the 

 water was sometimes made more luminous, 

 which they ascribed to the rising of bubbles of 

 air through it. 



Beccarius, as well as Reaumur, had many 

 schemes to render the light of these Phloades 

 permanent. For this purpose he kneaded the 

 juice into a kind of paste with flour, and -found 

 that it would give light when it was immersed in 

 warm water ; but it answered best to preserve the 

 fish in honey. In any other method of preserva- 

 tion, the property of becoming luminous would not 



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