APPARATUS AND MATERIAL 
Apparatus. The apparatus and material for use in bacteri- 
ology in a student laboratory fall very naturally into three 
groups, viz.: (1) apparatus to be used in common by all stu- 
dents, and for which no individual is responsible excepting 
when in actual use by him, and the supplies from which each 
student draws the necessary quantity for the work assigned ; 
(2) apparatus to be assigned to each student for personal 
use and for which he is wholly responsible; and (3) material 
such as notebooks to be provided by each. The assignment 
of equipment and supplies in accordance with this plan has 
been made in a general way, as indicated in the following 
paragraphs. 
(1) Apparatus in laboratory for general use. This includes 
the apparatus and chemicals to be used in common by all 
students, and consists of pans and brushes for cleaning test 
tubes and other glassware, meat mincer and press, large and 
small water baths, steam sterilizers, hot-air sterilizers, incu- 
bators, thermometers, thermostats, gas burners, balances, level- 
ing tripods, Wolffhiigels’ or other apparatus for aid in counting 
colonies, micrometers, metric rules, burettes, tripods, funnels, 
beakers, pipettes, graduates, glass tubing and rods, also the 
chemicals necessary for carrying on the work, such as various 
acids and alkalies, disinfectants, alcohol, aniline dyes, and those 
articles needed in the preparation of culture media, such as salt, 
peptone, agar, gelatin, meat extract, sugars, litmus and other 
Xili 
