sample due to large quantity of sediment present in the preparation. 



Experiment No. 2 was to determine the amount of sulphur and Calcium 

 lost from the Lime-sulphur solution by the mixing of 2 cc. of the Nicotine so- 

 lution with a dilute Lime-sulphur solution of the dilution 1:20. 



TABLE B 



50 cc. of the concentrated Lime-snlphur solution was diluted to 1000 cc. 

 by the addition of water after the following was added. - 



PerlOOccof Dilute Lime- 2cc Nico- 2cc Nico- 2cc Nico- 2cc 



Rolution sulphur Sol. fume sul (acid) sul (neut) Rextract 



The results in Experiment number two found in Table B. shows that at 

 the dilution of one to twenty a very small quantity of Calcium is thrown out of 

 solution by the mixing, just the same as in number one. The "Nico-fume" 

 which is alkaline throws out of solution 1.19 percent of Calcium due to the 

 replacement of the Lime by the alkaline substance, while the neutral "Nico- 

 sul" solution causes no loss of Calcium and the loss due to the acid Nico-sul 

 solution was .22 of one percent, showing, that the acid Nico-Sul in the more 

 dilute solution had not as detrimentral effect. As to the sulphur there were 

 1 .33 percent more sulphur thrown out of solution by the acid Nico-sul solution 

 than with the alkaline Nico-fume solution showing approximately the same re- 

 sults as shown at the dilution of one to ten. In the more dilute solution of one 

 to twenty there was proportionally more sulphur deposited by the neutral Nico- 

 sul than in the dilution of one to ten, and .87 of one per cenJ more sulphur 

 thrown out by the use of neutral Nico-sul than with the acid Nico-sul. At the 

 dilution of one to twenty the results indicate tnat it is best to use neutral or 

 just slightly alkaline Nicotine compounds and not the acid Nicotine sol- 

 ution, as "Nico-Sul," with the dilute Lime-sulphur solution. 



Although the use of neutral Nico-sul solution gave a slight higher result 

 in the loss of sulphur than the acid Nico-sul solution, the loss of Calcurn wa* 

 not as great. 



