340 



LABORATORY GUIDE IN .PHYSIOLOGY. 



FIG. 10. 

 10. THE COMPENSATOR. Ludwig's instrument is shown in figure 10. 



FIG. 11. FIG. lla. 



11. BATTERIES, a. The Daniell cell, or element, is shown in fig- 

 re 11. b. The Bichromate cell see figure lla. 



