148 



■ — a mail can go after the scale. II takes the State, and much 

 l)etter, all of the States, to stop tlie chestmit l)lii!;ht, for he 

 travels faster than the scale. 



A National Scientific Campaujn, or a National HhiiKhi/i ri(/lil. 

 An Example from Africa. 



We iiave national corporations, national parties, national co- 

 operation to make a meal even, and now we have got to make a 

 national organization to fight a tree enemy just as Ave would to 

 light a iiiMii cncMiiy. The jn-ohh^m is big, bnt \V(^ kii(»\\ how if 

 we will. 



W(i have a s])l('n(li<l example in tiie South Ari-icaii catthi 

 j)lague. Jt swei)t for linndreds of miles, taldng ;ill cjiKhi before 

 it ;is frost, does the Hies. Then the Soutli African ( Jov^ei-iiments 

 (li'ew a (piarantine line around it and fought it to a standstill 

 riglit tliere. Tlie Unite<l States sliould try tlie same with the 

 chestnut blight. 



An Exain})ie from the Pcacli Yd loirs. 



The ])ea(h yellows is a disease of which we know just two 

 things. The Hrst is that it is a sure kill for trees, thc^ second 

 that it can be controlled by rigid quarantine. 1 before we knew 

 the second fact, the disease had actually broken u]) communities, 

 as in the Michigan peach belt, and reduced land valnes from 

 one hundred dollars an acre to thirty dollars per acre. With 

 quarantine in operation, and the disease still unknown, these 

 same localities have more peach trees than ever and are again 

 prosperous, 



A JjCSSOh from the Foot and Moidh Disease of Cattle in !*<■)} u- 



sylvania. 



The foot and mouth diseases in this State, — which cost us the 

 life of one of tlie most efilcient men \\v have ever had, namely 

 tli(^ brother of our Chairman, Dr. lA'onard Pearson, — the foot 

 and mouth disease, which is, practically, sure and quick death, 

 and so contagious that a stableman can carr}^ it miles in his 

 clothes, broke out recently in Pennsylvania in many places. Yet 

 this State jumped on it, and by a sharp, stiff, stand-uj) tight, it 



