368 THE NEW AGRICULTURE. 



country the results of their studies of plant life in all its varied 

 relation to agriculture. 



The entomologists obtain and disseminate information re- 

 garding injurious insects. They seek the introduction of ben- 

 eficial insects, as those that prey upon the San Jose scale and 

 the Mexican boll wevil. They conduct and make known the 

 results of experiments with insecticides and insecticide ma- 

 chinery. Some years ago when the farmers were more con- 

 servative than they are now, many of them were actually 

 paid to spray their trees in order that the results obtainea 

 might be an object lesson to the communities where the work 

 was done. Last year $500,000 was placed at the disposal of the 

 botanists with which to carry on the fight against the boll 

 wevil, and they have gone down into the infested district and 

 rented farms, the first time, it is believed, that such a thing 

 has been done, in order that they might demonstrate the effi- 

 cacy of the cultural methods which they have worked out. 



Then there are the veterinarians who look after the health 

 of the live stock of the country, investigate the existence of 

 dangerous and communicable diseases, superintend the meas- 

 ures for their extirpation, make original investigations as to 

 the nature and prevention of such diseases, superintend the in- 

 terstate movement of cattle and keep a lookout for and dissemi- 

 nate the knowledge of the means of improving the animal in- 

 dustry of the country. 



There are other scientists whose specialty is trees, their 

 uses, care and cultivation, and still others whose sole business 

 is the stimulation by free object lessons, education and advice 

 of the good roads propaganda throughout the country. 



