l6 METHODS OF POULTRY MANAGEMENT. 



that anyone who builds one will wonder, after he has completed 

 and used it for a time, why he did not long before have so 

 simple and sanitary an adjunct to his plant. 



The crematory shown in Figure I is very simple in construc- 

 tion. It consists essentially of a cement base or fire box, bear- 

 ing on its top a series of grate bars which are in turn covered 

 by a cremating box or oven in which the material to be incin- 

 erted is placed. 



The crematory here described is sufficiently large to take 

 care of all the needs of a plant carrying 1000 head of adult 

 stock, raising 3000 to 4000 chickens annually, and in which a 

 good deal of anatomical and physiological research is going on, 

 necessitating a much larger amount of waste animal material 

 than the ordinary commercial poultryman would have. There- 

 fore, it is doubtful if it would be necessary in any but the very 

 largest commercial plants to build a larger crematory than the 

 one here described. 



In building this an excavation was first made for the base, 

 in which a lot of loose stones and gravel were placed, in order 

 to secure adequate drainage below the cement. On top of this 

 the cement base and fire box were made. 



This base consists essentially of a rectangular box made of 

 cement open at the top, and with a small opening in front 

 through which the fire is fed and which serves as a draught. 

 The walls are about 6 inches thick. The outside dimensions of 

 the fire box base are 3 feet, 4 inches by 2 feet, 6 inches. The 

 inside dimensions of the fire box are 2 feet, 3 inches by I foot, 

 91-2 inches by I foot, 4 inches. Across the top of the fire box 

 there were laid, while the cement was still soft, some old grate 

 bars from a small steam boiler, which had been discarded and 

 thrown on the dump heap. These were set close together and 

 held firmly in place when the cement hardened. They form the 

 grate on which the material to be incinerated is thrown. These 

 old boiler grate bars, besides costing nothing, had another ad- 

 vantage ; namely that of their thickness and weight. When they 

 become thoroughly heated from the fire below they will hold the 

 heat for a considerable time charring and burning the animal 

 material above. 



