264 



Mr. A. W. Blyth. 



[Nov. 26, 



Alkaloids. 



Days 



2 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 



12. 



At 15° to 16-5°— 

























Strychnine 0'02 p.c. . . 



— 



+ 





















0-04 „ 



— 



+ 





















0-07 „ 



— 



+ 





















o-oi „ 



— 



+ 





















0-02 „ 



— 



— 



— 



+ 

















„ 0-25 „ 

























0-50 „ 

























1-00 „ 

 Brucine O01 

























— 



+ 





















„ 0'02 „ 



— 



+ 





















0-25 „ 

























„ 0-50 „ 

























Quinine sulphate dis- 

























solved by means of 

























acid in water - 5p.c. 

























Quinine sulphate dis- 

























solved by means of 

























acid in water l'O p.c. 

























Quinine sulphate in 



- 



— 



— 



— 



+ 















water 0'3 per cent. 

























At 35-5°— 

























Ditto 



— 



— 



— 



— 



— 



— 



— 



— 



— 



— 



— 



At 15° to 16*5° — 

























Atropine sulphate 05 

























per cent. 

























Aniline water 1 : 9. . . . 





+ 





















2:8.... 



- 





+ 



















3:7 









































+ 









Morphine acetate 0*5 







+ 



















per cent. 

























Morphine acetate l'O 













+ 













per cent. 



























+ 























Ferrous Sulphate. — Infected threads steeped many hours in a 

 saturated solution of ferrous sulphate (16' 7 per cent.) afterwards 

 developed a strong growth, thus confirming other researches as to 

 the unreliability of this salt as a disinfectant. 



Potassic Permanga?iate. — Experiments on the action of potassic per- 

 manganate were made by the thread method. As the infected thread 

 was immersed in a large volume of the disinfectant, the latter acted 

 under more favourable conditions than are likely to occur in actual 

 practice, in which there will be usually a quantity of easily broken 

 up organic matter, decomposing the permanganate, and thus in 

 effect removing it. 



The results are given in the table, from which it appears that no 



