Fic. 15. 
17. 
20. 
25. 
26. 
27. 
28. 
29. 
30. 
gt. 
32. 
33- 
34. 
35- 
. Coconut Budrot: 
LIST OF ILLUSTRATIONS. 
Page. 
Cross-section of Bean-leaf in an early 
stage of Infection showing relation 
of Bacterium phaseoli to the Tissues. 
. Cross-section of Leaf of Broom-corn 
showing an early stage of Stomatal 
Puslectinthin so vacant ne eas i eres 
Like Fig. 16, but the Bacteria have 
passed beyond the Substomatic 
Chamber and are wedging apart 
neighboring cells. .........+-5+++ 
. Angular Leaf-spot on Rivers Cotton 
produced in hot-house by spraying 
with water containing Bacterium 
UTOREARTUNE oc s\n sistas (65 Se ae 
Sound enveloping 
Leaves removed to show Terminal 
Bud attacked by the Soft Rot... ... 
Coconut Budrot, showing inability of 
rotted bud to support its own 
weight, when the outer leaf-sheaths 
ALE TEMOVER side Fee ase a ss wes 
. Root-hairs of Bur-clover infected by 
Bact. leguminosarum...........+-- 
. Bacterial Strands in root-tubercle of 
BRP MOVED, 25 2 ataeties vo v0 o 05 aims 
. Olive Leaves with incipient Metastatic 
Tubercles due to Stem Inoculations. 
. Secondary tumors in various places 
on leaf of Paris Daisy developing 
from the internal tumor strand.... 
Solvent Action of Bacillus phytoph- 
thorus on middle lamellz of cells of 
Potate tHBer ss ssi encsk Reeth savas 
Aerial Roots on Daisy due to pres- 
ence of the Tumor farther up on 
SUI: «55 Rikers Secale 9. thew tay BK ss 
Swelling on Potato-shoot due to Inocu- 
lation with nonvirulent Bact. solana- 
COOTWHE 556 36, adh Les ent ot sa he 
Sugar-beets Inoculated with Bact.’ 
tumefaciens (plated from tumor on 
Paris Daisy) cic 2s contdaaiss sce states 
Sugar-beet Inoculated with Bact. 
tumefaciens (plated from Crown- 
gall'of Pesach). 955. bs 2 tt4 oon 55.0 
Tyloses due to Bact. mori in the vessels 
Of the Mulberry. cc sc- bade jaws 
Bacterium leguminosarum: Effect of 
Bacterial Occupation on Cell- 
nucleus in Soy-bean............. 
Effect of Root-Nodules on a Pea 
grown in confined air on Nitrogen- 
Woronine’s figures................. 
Bacterium leguminosarum: Cross-sec- 
tion of small Root-nodule of Soy- 
bean showing tissue»occupied by 
the Bacteria. "65. scene teactiete ee 
Bacterium leguminosarum: Effect of 
repeated Freezings............... 
62 
63 
64 
65 
67 
72 
73 
76 
92 
93 
94 
97 
Fic. 
36. Bacterium leguminosarum: Zoogloee 
37. 
60, 
62. 
63. 
Page 
threads growing through cells in 
Root-nodule of Common Pea...... 
Bacterium leguminosarum: Stages in 
formation of Y-shaped Bacteroids 
from simple Rods............+.- 
. Kefir grains. After Kern........... 
. Dispora caucasica. After Kern...... 
. Bacillus caucasicus. 
After von Freu- 
Saccharine Medium.............. 
. The same, in an ordinary unsuitable 
medium (bouillon)............... 
. Grains of “California beer-seed”’.. . 
. Section free-hand through one of the 
preceding, the darker bodies being 
groups of Yeast imprisoned in 
Masses of the Bacteria........... 
. A bit of the preceding crushed out in 
. Another view showing oblong and 
round yeasts, contents omitted. . 
. Spores in Yeast Cells taken from 
“Beer-seed s,s s)se-psreated o Oa alee 
. Hubbard Squashes Wilting from an 
attack of Bacillus tracheiphilus..... 
. Bacterial Ooze from vessels of Cucum- 
. Squash plant No. 215 dwarfed by 
B. tracheiphilus (upper figure)... .. 
. Cross-section of Cucumber-stem, show- 
ing location of Bacteria in a bundle. 
Diabrotica vitiata, distributor of the 
Bacillus of Cucumber-wilt........ 
. Progress of wilt by hours on an Inocu- 
lated Leaf of Cucumber (plant No. 
. Diagram of vine No. ee: attacked by 
Bacillus tracheiphilus.........0045 
. Diagram showing distribution of 
Bacillus tracheiphilus in the Vascular 
Bundle of a Cucumber Plant 8 days 
after the first appearance of the wilt 
(2 days after the appearance of sec- 
ondary wilt, and 16 days after the 
Inoculation). Saceiiee oe ton ate he 
61. Two stages of Wilt in Inoculatéd 
110 
113 
156 
157 
- 161 
. Marshall Ward's Bacterium vermiforme 
. Same, showing splitting of sheaths... 
. The Ginger-beer Plant in a suitable 
164 
165 
210 
212 
213 
214 
216 
220 
222 
223 
225 
Leaf on plant No. 27......... 228,229 
Cucumber from a field, showing in 
detail the Infection of a Single 
Bundle of the stem by B. trachei- 
Progress of Wilt on Inoculated Leaf 
of plant No. 28 (cucumber)........ 
’ 
‘ 
u 
‘ 
‘ 
69 
