Xll LIST OF ILLUSTRATIONS 



30. An Example of the Difficulty in selecting by Type . facing 132 



81. Scales for weighing Milk 136 



32. Milk Sheet 138 



33. Form for keeping Milk Records, weighing Three Days per 



Month 139 



34. Form for a Permanent Record 143 



35. Frame for holding Milk Record Sheets . . . . .145 



36. Bull Shed built at Purdue University . . . facing 171 



37. Skim Milk Calves in Pasture "196 



38. Calves tied in Stanchions for Feeding ... "196 



39. Influence of Feed upon Size and Conformation of Dairy 



Heifers facing 206 



40. Influence of Age at First Calving upon Size of Dairy Heifers " 208 



41. The Influence of the Age of Calving and Feeding when Young 



upon Dairy Cows. Light Fed Early Calving compared with 

 Heavy Fed Late Calving . . . . . facing 209 



42. Devices for marking Cattle 213 



43. Correct Position of the Hands when Milking (Grotenfelt) . 220 



44. Instruments for Treatment of Udder Troubles . . . .225 



45. Apparatus for treating Milk Fever ...... 237 



46. Improvised Apparatus for treating Milk Fever .... 238 



47. Plan of a Two-story or Loft Barn. (U. S. Dept. Agric.) . . 296 



48. A One-story or Shed Type Barn .... facing 297 



49. A Good Example of a Round Barn .... "298 



50. Interior Arrangement of a Good Barn . . " 298 



51. Arrangement and Plan of a One-story Barn. (U. S. Dept. Agric.) 301 



52. Cross Section of a One-story Barn (Erf. ) . . . . .303 



53. Cross Sections (one half) of Barns showing Common Plans of 



Construction .......... 307 



54. Cross Sections showing Various Types of constructing Mangers 309 



55. Stall constructed of Iron Piping 311 



56. The King System of Ventilation 313 



57. Trocar used for Bloat . . 337 



