240 ANIMAL COMPETITORS 
Fencing against other wild animals. Fen- 
cing as a means of protection against wild an- 
imals has for several years been in use in the 
Australian colonies and in South Africa. In 
Australia wire nettings are used successfully to 
keep rabbits, dingoes, and some species of kan- 
garoos out of pastures and crops. In Cape 
Colony jackals are a great hindrance to sheep- 
and ostrich-farming, and have been successfully 
checked only by wire-fencing they could not get 
over, nor under nor through. The expense of 
such fencing in our own plains country would 
probably be $250 a mile; but it would pay for 
itself, according to the South African experi- 
ence, in the increased number of lambs reared, 
fleece secured, health of the stock, improved 
pasturage and less cost of herding. 
To those interested these arguments do not 
need expanding nor expounding; nor is it need- 
ful to explain and discuss the recommenda- 
tions for various designs of fence. The follow- 
ing summary of recommendations made by 
Special Agent Lantz, of the Biological Survey, 
in 1905, are good for to-day, and have stood 
the test of experience: 
