12. Wondrous things are promised from the Glow-worm; from thence perpetual lights are pretended, and waters said to be distilled which afford a lustre in the night; and this is asserted by _Cardan, Albertus, Gaudentinus, Mizaldus_, and many more. But hereto we cannot with reason assent: for the light made by this animal depends much upon its life. For when they are dead they shine not, nor alwaies while they live; but are obscure or light, according to the protrusion of their luminous parts, as observation will instruct us. For this flammeous light is not over all the body, but only visible on the inward side; in a small white part near the tail. When this is full and seemeth protruded, there ariseth a flame of a circular figure and Emerald green colour; which is discernable in any dark place in the day; but when it falleth and seemeth contracted, the light disappeareth, and the colour of the part only remaineth. Now this light, as it appeareth and disappeareth in their life, so doth it go quite out at their death. As we have observed in some, which preserved in fresh grass have lived and shined eighteen days; but as they declined, and the luminous humor dryed, their light grew languid, and at last went out with their lives. Thus also the _Torpedo_, which alive hath a power to stupifie at a distance, hath none upon contaction being dead, as _Galen_ and _Rondeletius_ particularly experimented. And this hath also disappointed the mischief of those intentions, which study the advancement of poisons; and fancy destructive compositions from Asps or Vipers teeth, from Scorpions or Hornet stings. For these omit their efficacy in the death of the individual, and act but dependantly on their forms. And thus far also those Philosophers concur with us, which held the Sun and Stars were living creatures, for they conceived their lustre depended on their lives; but if they ever died, their light must also perish. It were a Notable piece of Art to translate the light from the _Bononian_ Stone into another Body; he that would attempt to make a shining Water from _Glow-worms_, must make trial when the Splendent part is fresh and turgid. For even from the great _American Glow-worms_, and Flaming _Flies_, the light declineth as the luminous humor dryeth. Now whether the light of animals, which do not occasionally shine from contingent causes, be of Kin unto the light of Heaven; whether the invisible flame of life received in a convenient matter, may not become visible, and the diffused ætherial light make little Stars by conglobation in idoneous parts of the compositum: whether also it may not have some original in the seed and spirit analogous unto the Element of Stars, whereof some glympse is observable in the little refulgent humor, at the first attempts of formation: Philosophy may yet enquire.