——S Pe 
ee 
119. 
120. 
121. 
122. 
123. 
124. 
125. 
126. 
127. 
128. 
129. 
130. 
- = ae — . «* eo 
—_———— . _ - 
LIST OF ILLUSTRATIONS. 
Page. 
. Solvent action of Bact, campestre on 
middle lamelle.........:.......-. 317 
. Beginning of cavity in a Turnip-root. 318 
. Closed cavity in a Turnip-root due to 
Bact: COMPCHNG s 53.6b 5 Noon igo 8 318 
. Cross-section of Turnip-root showing 
-many cavities and vascular occlu- 
sions due to Bact. campestre....... 318 
Cross-section of Rape-petiole showing 
Bacteria confined principally to 
thee Bare. cae Se ee see any 319 
Longitudinal section showing non- 
lignified cells of Turnip-root filled 
with Bact. campestre. These border 
on a reticulated vessel............ 320 
Flagellate Rods of Bact. campestre 
from an Agar Culture............ 321 
Rods of Bact. campestre from Stem of 
Charlock (polar staining ?)....... 321 
Rods of Bact. campestre from Kohlrabi 
from a Gelatin Culture. .......... 321 
Rods of Bact. campestre from a smear 
from a Cabbage-stem, enlarged 
from a photomicrograph.......... 321 
Rods of Bact. campestre from a Potato 
Culture kept at 12° C............ 322 
Ditto from a 48-hour Bouillon Culture 
BEBO? Oras cia esate ee Seats se 322 
Ditto from a very old browned Potato 
Ee ete eon Semen 322 
Portions of three Agar Plates poured 
from stem of Collard (fig. 105 at x). 
Size of colonies is reduced by 
CEOWOMIE CS oc tik aid oalon Sho abe sag 323 
Liquefaction of Gelatin by Bact. 
COMMENT O 865 sac tar eee ewes s oie 325 
Nongrowth of Bact. campestre over 
Chilotelorin sss an atee eh caked 327 
130a. Left. Cabbage leaf extruding fluid 
from water pores. Right. Cabbage 
leaf showing early stage of marginal 
(waterpore) infection............. 332 
Fic. 
131. 
132. 
133. 
134. 
135. 
136. 
137- 
138. 
139, 
141. 
142. 
147. 
148. 
Cross-section of Hyacinth Bulb, show- 
ing an early stage of Infection 
(7 Yellow Bundles) due to Inocu- 
lation of Scape. Sessa ns bx tar ba 336 
Cross-section of a Hyacinth Bulb 
Infected from a Flower Stalk... ... 337 
Haarlem Bulb Scale, showing Dis- 
organization of Parenchyma....... 341 
Cavity in Parenchyma at extreme 
base of a Bulb-Scale (inoculated 
Cross-sections of badly Yellowed Bulbs 
(Wakker’s disease) obtained by the 
writer in Holland.......5........ 343 
Cavity in an Inoculated Leaf....... 344 
Petar Ont T4811 iss dee tine 345 
140. Rods of Bact. hyacinthi......... 345 
Non-segmented threads (filaments) 
of Bact. hyacinthi...... Me ee Fs 345 
Flagellate rods of Bact. hyacinthi..... 345 
. Action on Milk of lab ferment pro- 
duced by Bact. hyacinthi......... 346 
. Stab-cultures in Gelatin containing 
Malic Actd 2c; 5 )./oe = etenis ate ee 347 
. Behavior of Bact. hyacinthi in fermen- 
tation-tube in presence of Maltose _ 
and Peptone a <siscssscte a eee 348 
. Behavior. of Lead Acetate Paper ex- 
posed over cultures of Bact. 
hyacinthi.......... Plies Sonia's arate 349 
Parts of Agar Poured-plates of Bact. 
hyacinthi, showing slow growth of 
buried and surface colonies in pure 
PNGIE. CARs Dena tee esa ee as 349 
Shagreened surface sometimes seen in 
Streak-cultures of Bact. hyacinthi 
