12 BULLETIN 81, U. S. DEPARTMENT OF AGRICULTURE. 
Pending the completion of arrangements with foreign governments 
for the survey and delimitation of disease-free districts and for the 
inauguration of a system of inspection and certification of potatoes, 
a temporary quarantine was laid, as follows: 
United States Department op Agriculture, 
Office op the Secretary, 
Federal Horticultural Board. 
Notice of Quarantine No. 11 (Foreign), 
potato quarantine. 
The fact has been determined by the Secretary of Agriculture that injurious potato 
diseases, including the powdery scab (Spongospora subterranea), new to and not 
heretofore widely prevalent or distributed within and throughout the United States, 
exist in the Dominion of Canada, Newfoundland, the islands of St. Pierre and Mique- 
lon, Great Britain, Ireland, and Continental Europe, and are coming to the United 
States with imported potatoes. 
Now, therefore, I, David F. Houston, Secretary of Agriculture, under the authority 
conferred by section 7 of the act of Congress approved August 20, 1912, known as 
"The Plant Quarantine Act" (37 United States Statutes at Large, page 315), do hereby 
declare that it is necessary, in order to prevent the introduction into the United 
States of such potato diseases, to forbid the importation into the United States, from 
the countries hereinbefore named, of the common or Irish potato (Solarium tuberosum) 
until such time as it shall have been ascertained, to the satisfaction of the Secretary 
of Agriculture, that the country or locality from which potatoes are offered for import 
is free from such potato diseases. 
On and after December 24, 1913, and until further notice, by virtue of said section 
7 of the act of Congress approved August 20, 1912, the importation, from the countries 
hereinbefore named, of the common or Irish potato, except for experimental or scien- 
tific purposes by the Department of Agriculture, is prohibited: Provided, That ship- 
ments of such potatoes loaded prior to December 24, 1913, as shown by consular in- 
voices, will be permitted entry up to and including January 15, 1914. 
Done at Washington this 22d day of December, 1913. 
Witness my hand and the seal of the United States Department of Agriculture. 
[seal.] David F. Houston, 
Secretary of Agriculture. 
A GENERAL QUARANTINE NOW IN EFFECT. 
The order quoted above has resulted in the stoppage of potato 
importations from Canada and all the countries of Europe for an 
indefinite period. It is not known at present how many of these 
countries will ultimately qualify for the lifting of the quarantine, but 
the apparent general distribution of powdery scab in many of them 
makes it improbable that they will resume shipments to the United 
States in the near future. Certain portions of Canada are reported 
to be nearly free from powdery scab, and the vigorous campaign now 
being waged there against the disease offers hope that the restriction 
may be modified with respect to specified districts at an early date. 
The initiative in lifting the quarantine rests with the foreign 
government, which must notify the United States that specified dis- 
