THE SEVERAL COMMUNICATIONS ON THE CAUSE AND CURE 



POTATO ROT 



aECEIVED BY THE EXECUTIVE OF MASSACHUSETTS. 



rEEPARED AND PUB1I3HED UNDER THE AUXH0RIT7 OF THE LEGISLAIUEE, 



BY AMASA WALKER, 



SECEETAEY OF THE COMMONWEALTH. 



BOSTON: 



DUTTON &. WENTWORTH, STATE PRINTERS, 



No. 37, Congress Street.' 



1852. 



