APPENDIX. 



LIST of apparatus and materials required in a begin- 

 ner's bacteriological laboratory : 



MICROSCOPE AND ACCESSORIES. 



Microscope with coarse and fine adjustment and 

 heavy, firm base; Abbe sub-stage condensing system, 

 arranged either as the " simple " or as the regular Abbe 

 condenser, in either case to be provided with iris dia- 

 phragm ; objectives equivalent, in the English nomen- 

 clature, to about one-fourth inch and one-sixth inch 

 dry, and one-twelfth inch oil-immersion system; a 

 triple revolving nose-piece ; three oculars, varying in 

 magnifying power ; and a bottle of immersion oil. 



Glass slides, English shape and size and of colorless 

 glass. 



Six slides with depressions of about 1 cm. in diameter 

 in centre. 



Cover-slips, 15 by 15 mm. square and not more than 

 from 0.15 to 0.18 mm. thick. 



Forceps. One pair of fine-pointed forceps and one 

 pair of the Cornet or Stewart pattern, for holding cover- 

 slips. 



Platinum needles with glass handles. One straight, 

 nljniit 4 cm. long; one looped at the end, about 4 cm. 

 long; and one straight, about 8 cm. long. Glass 



669 



