246 FEEDING AND MANAGEMENT 
are not good for hogs, but there is no doubt that charcoal and 
wood ashes have a beneficial effect. Charcoal made from corn- 
cobs auswers very well. It is a good practice to supply hogs 
with chareoal, especially during the winter months, but, if the 
hogs have not had any charcoal for a considerable time and 
are then given a liberal supply, there is danger that they may 
Fig. 54.—Yearling Duroc-Jersey sow, a frequent prize-winner. 
take too much for their own: good. The same caution must 
be observed in regard to salt. 
If charcoal is not available, a very good mixture, to keep 
constantly before hogs in small troughs made for the purpose, 
can be made up of one part salt, one part sulphur, and about 
ten parts wood ashes. 
Sods make a very fair substitute for charcoal. A wagon- 
