ILLUSTRATIONS xix 
85. Double-unit House Completed ............ 00 cece cece eee ee 131 
86. Working Plans of Small-unit Laying House...................... 132 
87. Small-unit Laying House Completed.....................005 '.... 133 
88a, b. Working Plans of Laying House with Two-thirds Span Roof 134-135 
89. Laying House with Two-thirds Span Roof....................04. 136 
90. Interior View of Two-thirds Span House..................000005 136 
91a. Working Plans of Half-monitor Laying House.................. 137 
91b. Half-monitor Type of Laying House in Process of Construction 
and Nearing Completion ...........0..0. 0000 e teen eens 138 
92a. Working Plans of Portable Laying House...................... 140 
92b. Portable Colony Laying House Completed..... ey eee are eran arta 141 
93. Arrangement of Nests, Perches, and Dropping Boards............ 144 
94. Roosting Closets to Prevent Drafts at Night..................... 145 
95. Four Ways of Locating Nests.............0.. 000 cece e eee eee eee 147 
96. Dark Wall Nests, Arranged in Tiers..................0 000 eee eee 148 
97. (Coopsfor Brood y: Hensiv.s i4.sae 3 qivace des stoke noew geen eer ies 148 
98. Pearl or Maine State Trap Nest...........0 0.06.0 cece eee eee 149 
99. Improved Connecticut Trap Nest............. 0.0. cee ee eee eee 149 
100. The Cornell Trap Nest......... 0: cc cee cece cee ee cee ee eeee 150 
101. Common Types of Feeding Troughs.................00....-000- 153 
102. A Home-made Dry-mash Hopper ..............2-.002 00 eee ewes 154 
103. A Practical Drinking Fountain.................. 20.0000 e eee eee 155 
104. A Hopper for Grit and Shell........0...0. 00... c cece eee eee 156 
105. A Group of Commercial Feeding Appliances..................... 157 
106. A Good Method of Double Yarding and Crop Rotation........... 159 
107. Three Methods of Arranging Double Yards...................... 161 
108. Forms for Making Concrete Fence Posts...............---.0005- 162 
109. Manner of Bracing a Corner Fence Post...............--.000004- 163 
110. A Common Type of Fence Construction.....................00. . 165 
111. Ways of Bracing Gate Posts............ 0c c cece cece eee eens 166 
112. Types of Gate Construction............... patainatelitnd cash lodL As 167 
113. Graphic Representation of the Composition of the Bird’s Body .... 170 
114. Cross Section of Wheat Kernel.............. 00.0. e eee eee 188 
115. Rack for Sprouting Oats......... 6. 6c eee ccc eee eens 189 
116. A Tray of Sprouted Oats Ready for Feeding..................... 190 
117. Mangel-wurzel Beets at Harvest Time....................000005 199 
118. Poultry Feed House, Centrally Located....................0005- 205 
119. The Poultry Feed Wagon.......... 0.00. cece eee eee 207 
120. Morphological Variation, Illustrated with Chicks................. 236 
121. Substantive Variations, Light and Dark Males................... 237 
122. Meristic Variation, Four-legged Chick...............2.0.0. c0005 238 
123. Functional Variation, Eggs of Different Sizes.................0.. 239 
124. Rumpless Birds, a Mutation............-. 00.200 e eee eee eee 240 
125. Inbreeding Chart, Showing Distribution of Inherited Characters... 247 
126. Line Breeding Chart........... 0000 c cece cee ene eee eee aes 249 
427. “Lady Lay More,” a Wonderful Hen...... Fal Wiaiaiend.S fobees rast cals Sede 253 
