Contents. x i 



PAOB. 



LIGHTING FARM BUILDINGS 34 8 



Efficiency of windows, p. 348 ; Position of windows, p. 349. 



VENTILATION OF FARM BUILDINGS 350 



Necessity for ventilation, p. 350; Carbon dioxide, p. 350; Mois- 

 ture from lungs and skin, p. 350 ; Ammonia and organic mat- 

 ter, p. 351 ; Micro-organisms and dust, p. 352 ; Bad ventila- 

 tion predisposes to disease, p. 352. 



AMOUNT OF AIR REQUIRED 353 



Amount respired, p. 353 ; Degree of Impurity permissible, p. 354 ; 

 Rate of supply, p. 354. 



CONSTRUCTION OF VENTILATORS 355 



Capacity of flues, p. 355 ; Forces producing ventilation, p. 358 ; es- 

 sential features, p. 358 : Location, p. 359 ; Place of openings, p. 

 360 ; Introduction of fresh air, p. 362 ; Construction, p. 363 ; 

 Ventilation of basement stables, p. 364. 



CHAPTER XVIII. 

 PRINCIPLES OF CONSTRUCTION. 



RELATION OF COVERING TO SPACE ENCLOSED 866 



Relation of walls to floor space* p. 366 ; Relation of bight to ca- 

 pacity, p. 367 ; Combined and separate construction, p. 370 ; 

 Saving of labor, p. 372. 



STABLE FLOORS 374 



Essential features, p. 374 ; Cold and warm floors, p. 375 ; Use of 

 bedding, p. 376 ; Wood floors, p. 377 ; Making wood floors water- 

 tight, p. 377 ; Stone floors, p. 378 ; Macadam floors, p. 378 ; 

 Macadam for barn yard, p. 379. 



CONSTRUCTION OF CEMENT FLOORS AND WALKS 879 



Kinds of cement, p. 379 ; Cement concrete, p. 379 ; Materials, 

 p. 380 ; Wetting crushed rock, p. 380 ; Ratio of ingredients for 

 concrete, p. 381 ; For finishing, p. 381 ; Thickness, p. 382 ; 

 Making and laying, p. 382. 



CATTLE TIBS 384 



Stanchions, p. 384 ; Adjustable stalls, p. 385 ; Movable halter ties, 

 p. 387. 



MANGERS 3 



MANURE DROPS ^ 



PROVISIONS FOR WATERING 388 



Watering In bain, p. 388 ; Storing water in tanks, p. 389 ; Water- 

 ing trough, p. 390. 

 ARRANGEMENTS FOB UNLOADING HAT s9 * 



CHAPTER XIX. 



CONSTRUCTION OF SILOS. 



CONDITIONS ESSENTIAL FOR PRESERVING SILAQB 394 



Depth, p. 394 ; Rigid walls, p. 394 ; Protection against frost, p. 396. 



