NATURAL HISTORY. 



649 



more nauseous to the taste ; it tion with the ceconomy of the 



is therefore adviseable to always animals that possess it, except- 



strain sea water before it is ing in the flying insects, which 



drunk. by that means discover each other 



The luminous property does at night, for the purpose of sexual 



not appear to have any connec- congress. 



L 



