55 
C. Morphology 
1. Vegetative Cells. 
(a) Form: spheres, short rods, long rods, filaments, commas, short 
spirals, long spirals, curved. 
(b) Arrangement: single, pairs, chains, fours, cubical pockets. 
(c) Limits of size_size of majority. 
(d) Ends: rounded, truncate, concave. 
2. Capsules. 
(a) How stained_ 
3. Motility. 
4. Endospores: present, absent. 
(a) Location of endospores: central, polar. 
(b) Form: spherical, elliptical, elongated. 
5. Staining Reactions. 
6 . 
(a) 
(b) 
(a) 
( b) 
(c) 
(d) 
(e) 
(/) 
Stain a preparation from the agar slope with carbol fuchsin. 
Stain a preparation from the litmus milk culture with methy¬ 
lene blue. 
Judging from the results obtained with the different kinds of 
media, under what conditions does Streptococcus ladis grow 
best? 
What is the texture and flavor of milk soured by this organ¬ 
ism? 
Of what value is it in the dairy industry? 
Does the organism produce spores? 
Is all of the sugar of the milk fermented? If not, why not? 
What is the best temperature for the growth of the Streptococ¬ 
cus ladis group of organisms? 
