CONTEXTS 



Page, 



Introduction 9 



History 10 



Geographical distribution of economic cacti in the United States 11 



Methods of feeding 12 



Singeing the spines 12 



Singeing with a torch 13 



Steaming 13 



Chopping by machinery 14 



Other chopping devices 14 



Removal of the edge of the joints 14 



Handling the plants 15 



Pear machinery 16 



Origin of pear machinery 16 



Pear cutters 17 



Pear burners 19 



Pear for milk production 20 



Some dairy rations including pear 22 



Pear for fattening and maintaining cattle 24 



Pear as a hog feed 29 



Pear for sheep and goats 30 



Pear as a ration for working animals 30 



Effect of pear upon stock 33 



Cactus for the silo 35 



Pear thickets and their destruction 36 



Species of cactus which are of forage value 37 



Establishing plantations of pear 38 



Yield of pear 39 



Behavior of pear after harvesting 40 



Other economic aspects of the cacti 40 



Some conditions obtaining in the prickly-pear region 41 



Popular postulates of cactus feeding 43 



Description of plates 48 



7 



