64 



THE CULTIVATION OF BACTERIA. 

 FIG. 17. 



Glass benches for supporting plates. 



8. Graduated measuring cylinders of 100 and 1000 c,c. 

 pacity (Fig. 18). 



9. Graduated pipettes of 1 c.c. capac 

 and 10 c.c. divided into c.c. (Fig. 19). 



capacity (Fig. 18). 



9. Graduated pipettes of 1 c.c. capacity divided into tenths, 



FIG. 18. 



FIG. 19. 



FIG. 20. 



FIG. 21. 



Measuring cylinder. 



Graduated pipette. 



Sternberg bulb. 



Bulb-pipette, 



10. Sternberg bulbs (Fig. 20). 



11. Bulb-pipettes (Fig. 21). 



12. Petri's double dishes (Fig. 22). 



FIG. 22. 



Petri's double dish, now generally used instead of plates. (Abbott.) 



