APPENDIX 



493 



supports the wire gauze, and care must be taken, when moving the apparatus, 

 that no acid comes in contact with the gauze. The indiarubber tubing connecting 

 the chamber with the air pump should be provided with a clasp, so that the 

 chamber can be disconnected from the pump. 



Hot- Air Bath and Water Bath. The forms depicted in Figs. 282, 283 

 will be found most useful for physiological chemical purposes. 



PERCENTAGE AVERAGE COMPOSITION OF SOME OF THE MORE 

 IMPORTANT FOOD STUFFS. 



(Adapted from various sources.) 



