On the Light from organifed Bodies. 4"25 



ftate. On the third evening, the light had again rifcn to the top ; -but the lucid ring ap- 

 peared lefs vivid, and, on (halting the phial as before, the liquid was not fo luminous as 

 on the preceding night. 



Exper. 2. The fame experiment was repeated. On the fecond night, the liquid, being 

 agitated, was very luminous; on the third, not fo lucid; and on the fourth, the light was 

 extinguiflied. 



Exper. 3. With fea fait or muriated natron half a dram, and two ounces of water. 

 On the fecond night, the liquid, when agitated, was dark ; on the the third, lucid ; on 

 the fourth, very luminous ; on the fifth, it began to lofe light ; on the fixth, it continued 

 to decreafe ; and on the feventh it was quite gone. Neither the liquid, nor the herring, 

 had contrafted any putrid fmcli. 



Exper. 4. With fea water two ounces. On the fecond night, dark ; on the third, 

 fourth, and fifth, luminous; on the fixth, nearly extindt ; and on the feventh, totally. 

 The piece of herring, when taken out and examined, was remarkably fweet. . 



Roe of Herring *. 



Exper. 5. With Epfom fait two drams, and water two ounces. On the fecond night, 

 the liquid was pretty luminous ; on the third and fourth, ftill luminous ; and on the fifth 

 its light was extinft. 



Exper. 6. With Glauber's fait or vitriolated natron two drams, to two ounces of water. 

 On the fecond night, when the phial was fhaken, as ufual in all thefe experiments, the 

 liquid was pretty luminous ; on the third, lefs fo ; and on the fourth the light was 

 fcarcely vifible. 



Exper. 7. With fea water two ounces. On the fecond night, dark ; on the third, the 

 liquid was moderately luminous; on the fourth and fifth, it had extracted much light ; 

 and on the feventh it was ftill fhining. After this procefs, both the loe and the fea water 

 remained perfedlly fweet. 



The Flejh of Mackerel. * 



Exper. 8. With Epfom fait two drams, and water two ounces. On the fecond night, 

 the liquid was finely illuminated; on the third, a fimilar appearance; on the fonrth, a 

 dj^minution of light ; on the fifth, it continued lucid in a fmall degree ; annd. on the fixth 

 the light was extinguiflied* 



Roe of Mackerel. 



Exper, 9. With Epfom fait two drams, and water two ounces. On the fecond night, 

 the liquid, when agitated, was exceedingly bright ; on the third, the fame ; and on the 

 fourth and fifth, ftill lucid. 



* The quantity ufcd in each experiment was about four drams. 



Vol. IV.— December 1800. 3 I ' The 



