350 



LABORATORY GUIDE IN PHYSIOLOGY. 



FIG. 47. 



FIG. 48. 



47. Bell glasses, low form, with knob, 6 in. diam. 



48. Bell glasses, tall form, with knob, iy 2 in. diam. 



49. Bell glasses, open top, 6 in. diam. 



FIG. 49. 



FIG. 50. 



FIG. 51. 



FIG. 52. 



50. Bell glass, open top, with tubulure at side, l / 2 gal. 



51. Bottles, extra wide mouih, 4 oz. to 16 oz. 



52a. Bottles, mushroom, glass stopper, narrow mouth, 4 oz. to 

 16 oz. 



52b. Bottles, mushroom, giass stopper, narrow mouth, 16 oz. 



