86 



Messrs. Jones and Dupre on a Substancej [Apr. 13, 



26. Another pig was killed seventy-two hours after four grains of sul- 

 phate of quinine. The fluorescence was compared'also with pig 6, which 

 had taken no quinine ; the extract of the liver and of the brain had a 

 fluorescence equal to one-sixteenth of a grain of sulphate of quinine ; the 

 lenses had a fluorescence equal to one-thirty-second part of a grain ; the bile, 

 kidney, urine, the nerves, blood, and muscle had a fluorescence less than one- 

 thirty-second part of a grain ; and the humours fluoresced much less than 

 one-thirty-second part of a grain of sulphate of quinine in a litre of water. 



Fluorescence without quinine, measured by the number of grains of 

 quinine in 100 litres of water (176 pints). 



Liver, . . . 



Pigl. 



Pig 4. 



Pig 5. 



Pig 6. 



Pig 7. 



Pig 8. 









6 to 3 



less 6-2 



less 1'6 



Lenses . . 









less 3 



„ 1-6 



„ 1-6 



Kidney . . 









„ 3 



:» 1-6 



„ 1-6 



Urine . . 









» 3 



„ 1-6 



» 1-6 



Bile .... 









„ 3 



„ 1-6 



» 1-6 



Blood .. 





4 to 2 





» 3 



„ 1-6 



„ 1-6 



Brain . . 



less 3 



4 to 2 



"3 * 



„ 3 



„ 1-6 



„ 1'6 



Nerves . . 



5 



4 to 2 



5 



3 



„ 1-6 



„ 1-6 



Muscles . 





4 to 2 





3 



1-6 



„ 1-6 



Humours 





4 to 2 





least 



more 1*6 



„ 1-6 



Fluorescence after quinine. 





Pig. 11. 



Pig 12. 



Pig 13. 



Pig 14. 



Pig 15. 



PiglG. 



Pig 17. 





15 mill. 



30 miu. 



1 hour. 



3 hours. 



3 hours. 



4 hrs. 



4^ houi'S. 



Liver . . 



75 



40 



20 to 40 



100 to 200 



6-2 



100 



100 



Lenses . 



6 to 3 



5 





3 



1-6 





1-6 



Kidney . 



75 



40 



2*0 



100 to 200 



12 to 25 



100 



100 



Urine . . 



50 



20 to 10 



20 



100 to 200 



12 





100 



Bile .... 



12 



20 



5 



100 to 200 



25 





12-5 



Blood . . 



50 



20 



20 



100 to 200 



1-6 





1 2 to 25 



Brain . . 



12 



10 to 3 



5 to 3 



100 to 200 



3 



100 



6 to 12 



Nerves . 



6 



5 



least 



6 



1-6 to 3 





1-6 



Muscles 



50 to 25 



20 



5 



100 to 200 



6-2 



100 



50 to 100 



Humours 





5 





6 to 3 



6-2 





1-6 





Pig 18. 



Pig 19. 



Pig 21. 



Pig 22. 



Pig 23. 



Pig 24. 



Pig 25. 



Pig 26. 

 72 hrs. 





5| hours. 



6 hours. 



6 hours. 



8 hours. 



24 hrs. 



32 hrs. 



48 hrs. 



Liver . . 





50 to 25 



100 to 200 





50 



4 



6 



6 



Lenses . 





6 to 3 



3 to 1 





3 





3 



3 



Kidney . 





50 to 25 



100 





50 





3 



3 



Urine. . 





25 to 12 



100 



4 to 6 



12 to 6 





3 



3 



Bile .... 







75 



5 



12 





3 



3 



Blood . . 



20 to 40 



12 



100 to 50 





12 





6 



3 



Brain , . 





6 



25 





6 







3 







3 



6 





3 





3 



3 



Muscles 





12 



25 





12 to 6 





3 



3 



Humours 





6 



3 





6 





3 



least 



