APPARATUS REQUIRED. 



and also a liner pair, the latter with long narrow points ; a stout 



scalpel. It is well to have a 

 pair curved on the flat (fig. 5.) 



and a fine pair of scissors, and a 

 straight pair of scissors, and also a 

 It is convenient to have a pair 

 of forceps like those shown in 

 fig. 6 for lifting and applying 

 a cover glass to a preparation, 

 or like those in fig. 7 for hold- 

 ing a cover-glass on which a thin 

 film with bacteria is spread. 



7. Camel-Hair Brushes, at 

 least two, the smaller crow-size, 

 and one somewhat larger. 



8. A Razor, which is not to 

 he hollow-ground. It must be 

 kept very sharp, and stropped 

 frequently. It is better to have 

 one ground flat on one side. 



9. Watch-Glasses. Instead 

 of the ordinary-sized glasses, 

 the student should provide 

 himself with at least four 3 

 inches in diameter. 



10. A Section-Lifter. This may be made by beating out the end 

 of a piece of copper wire ( T ^ inch thick) until a thin plate is formed. 



FIG. 5. (a.) Scissors curved on the flat ; 

 (ft.) fine straight pair. 



FIG. 6. Cover-Glass Lifter. 



The plate is then bent at an angle to the stem. It is better, how- 

 ever, to purchase one made of German silver (fig. 8). 



11. Drawing Materials. As great importance is attached in 



FIG. 7. Cornet's Cover-Glass Forceps. 



this laboratory and in this course to making drawings of the 

 microscopic objects, each student must provide himself with a 

 drawing-book a quarto, with unruled paper, and containing i 50 

 pages or thereby, is sufficient. Suitable dfawing-pendlSj including 



