THE UTENSILS OF THE CULTIVATION OF BACTERIA. 69 



FIG. 28. 



Pinchcock. 



13. Moist chambers for potato and plate cultures (Fig. 23). 



14. Glass funnels of different sizes, 1, 4, and 8 ounces. 



15. Wooden filter-stands (Fig. 24). 



FIG. 30. 



FIG. 29. 





Fermentation-tube on left side; ordin- 

 ary tube on right side. 



Anatomical jar for collecting 

 blood. 



16. Iron stands with rings and clamps (Fig. 25). 



17. Iron tripods with water-baths (Fig. 26). 



18. Test-tube racks of any standard design. 



