Pholades and Medusae. 
By piunging thè luoiole al t erri itely into 
lukewarni and ccld v/ater, they Bhine v/ith 
vivacity in thè f'crmer, lout thè light he- 
Comes extirict in thè latter, v/hich according 
to thè authcr depends cn thè alteniate agreeablej 
and diBagreeahl e sensations whioh they ex- 
perience» In warm water their light graduai « 
ly disappearso Dr. Carradori tried cn thè 
lucide and their phcsphorus thè action of 
different saline and spiri tuous liqucrs, in 
which they exhibited thè sanie appearanoes as 
cther phcsphcric animals. Ihese last experi- 
rnents prove tiat thè phosphoric matt^er cf 
lucide ia oniy soluble in water. 
(Ilo te: it seeiiis that this artici e might hav 
been translated by some Englishrijan who W2is 
acquainted oniy with thè slow, ccntinuous 
glow of thè; gl ow-worm, and had not seen thè 
flashing light of thè lucida. MoD.) 
