26 



BACTERIOLOGY. 



enable it to be raised or lowered to adjust the 

 level . 



Large Glass Plate. A piece of plate-glass, 

 or a pane of ordinary window glass, about a foot 

 square. 



Spirit Level. 



Glass Bells and Dishes,. Shallow glass bells 



FIG. 7. DAMP-CHAMBER FOR PLATE CULTIVATIONS. 



and dishes, for making a dozen or more damp 

 chambers (Fig. 7), and for completing the ap- 



FIG. 8. APPARATUS EMPLOYED FOR PLATE-CULTIVATIONS. 



Tripod stand ; Glass dish, filled with cold or iced water ; Sheet of Plate-glass ; 

 Spirit Level, and Glass Bell. 



paratus for pouring out liquefied nutrient jelly on 

 glass plates or slides (Fig. 8). 



Iron Box. A box of sheet-iron (Fig. 9) for 



