34 Diseases of Poultry 



inches. In the top of this is cut a round hole, 12 inches in 

 diameter which is protected by a hinged cover 15 inches by 

 14| inches. This galvanized box has no bottom. It is 

 placed on top of the grate bars, and held firmly in place by 

 cement worked up around its lower edges. At the back 

 end of this iron cremating box is an opening for a stove pipe, 

 which is necessary in order to give the proper draft. It 

 is found in practice that only a short piece of stove pipe is 

 necessary to get sufficient draft to make a very hot fire, 

 which entirely consumes the birds in a few hours. The 

 funnel may best be left removable so that when the crema- 

 tory is not in use it can be taken off and stored inside the 

 wooden box, which then sets over the galvanized iron por- 

 tion to protect it from the weather. 



It is important in locating a crematory of this kind to 

 plan matters so that there will be good drainage from around 

 it. In particular pains should be taken to insure that water 

 does not run into the firebox and freeze during the winter. 



In operation the apparatus works as follows : Dead birds 

 are thrown into the incinerating chamber through the open- 

 ing in the top and the lid closed, while a wood fire is burning 

 in the fire box below. The aim should be to use dry wood 

 and get a quick and very hot fire. This first roasts the 

 material and then chars it, and finally reduces it to fine ashes. 



VII. Isolation of Sickness 



Whether one expects to treat the bird or to kill it, every 

 individual that shoics signs of sickness should he removed from 

 the general flock. When the bird has been isolated a decision 

 as to what will be done about the case can be reached at 

 leisure, and in the meantime the flock is not subjected to 

 the danger of infection. This is an important matter with 

 young chickens as well as with adult stock. 



