■lU. 
into Mexico will "be permitted only after a special permit has "been 
granted by the Office of Agricultural Defense,, subject to vacuum 
fumigation with hydrocyanic acid gas at a dosage of 60 grams per 
cubic meter, provided that the said products are intended solely for 
manufacturing purposes in factories located in districts where the 
existence of the pink bollworm (Pecti nophora g ossypiella ) has been 
demonstrated. 
The same general provisions apply to shipments of carded 
cotton, cotton waste and raw cotton with and without seeds, except 
that Puerto Mexico, Veracruz, is added as a port of entry. Fumigation 
of these products is permitted at the point of shipment, with corres- 
ponding certification by competent authority. A certificate declar- 
ing that these products do not proceed from districts infested with 
the pink bollworm of cotton must also accompany the shipment. 
Bales and packages of cotton shall bear numbered tags on 
arrival at the port of entry. All immigrants from the States of 
Arizona, New Mexico, and Texas, who enter Mexico through the northern 
border of that country, are prohibited from bringing with them 
cotton or cotton products which may serve to carry the pink boll- 
worm (P ectino-phora goss yuiella ) . 
All railroad cars from the United States which it is attempted 
to enter into Mexico shall be inspected before entering Mexican 
territory by inspectors appointed ^oy the Office of Plant Protection, 
who, after inspection, shall admit cars found free from evidence of 
having been used for the transportation of cotton, or its raw, un- 
manufactured products, and they shall require the cleaning or fumiga- 
tion of contaminated cars. 
NOTE: The following letter, dated Mexico City, 
October 21, 1926, has been received from the 
Office of the Director General of Agriculture 
and Livestock: 
"In answer to your letter of the fifteenth instant, you are 
informed that you have correctly interpreted the decision of this 
office relative to the requisites that should be complied with, at 
the present time, to allow the importation into this country of seeds 
from abroad, which requisites consist in subjecting to fumigation 
the seeds of cotton and coffee; seeds of oth^r kinds being subjected 
only to inspection; it being understood that the introduction of 
seeds infected with disease is prohibited. 
