FOODS AND FEEDING STUFFS. 

 Allihn's table for the determination of dextrose Continued. 



51 



(c) METHODS FOR DETERMINATION OF COPPER CONTAINED IN THE PRECIPITATE OF 

 CUPROUS OXID. PROVISIONAL. 



(For Low's volumetric method see Appendix, p. 241.) 



(1) REDUCTION IX HYDROGEN. 



Filter the cuprous oxid immediately, through a weighed filtering tube made 

 of hard glass, using suction. Support the asbestos film in the filtering tube 

 with a perforated disk or cone of platinum, and wash free from loose fibers 



