67. Sheep scab mite.
68. Sheep scab.
69. A severe case of mange.
70. Liver flukes.
71. Tapeworm larvae in liver.
72. Tapeworms.
73. Tapeworm larvae in the peritoneum.
74. Thorn-headed worms.
75. Large round-worm in intestine of hog.
76. Lamb affected with stomach worm disease.
77. Whip-worms attached to wall of intestine.
78. Pin-worms in intestine.
79. A hog yard where disease-producing germs may be carried over
from year to year.
80. Carcass of a cholera hog.
81. Kidneys from hog that died of acute hog-cholera.
82. Lungs from hog that died of acute hog-cholera.
83. A piece of intestine showing intestinal ulcers.
84. Cleaning up a hog lot.
85. Hyperimmune hogs used for the production of anti-hog-cholera serum.
86. Preparing the hog for vaccination.
87. Vaccinating a hog.
88. Koch's _Bacillus tuberculosis_.
89. A tubercular cow.
90. Tubercular spleens.
91. The carcass of a tubercular cow.
92. A section of the chest wall of a tubercular cow.
93. A very large tubercular gland.
94. A tubercular gland that is split open.
95. Caul showing tuberculosis.