i6 



DAIRY ANALYSIS 



phenolphthalein solution (see Appendix), and run in 



N 



from a burette caustic soda, or other alkali solution, 

 strontia being recommended (see Appendix), in drops, 



FIG. 12. Estimation of Acidity. 



stirring constantly, till a faint pink colour, equal 

 to that given by adding I drop of a o.oi per cent, 

 solution of rosaniline acetate in 96 per cent, alcohol to 

 II c.c. of the same milk, is produced; each T Vc.c. of 



- alkali solution represents i acidity, and the degrees 



