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Products Admitted for Scientific Purposes 
Art. 3» The entry into Mexico of the fruits and vegetables indicated 
in article 1 may be authorized only under a special permit, for study or 
scientific work, and on observing the precautions required by the respective 
office. 
The foregoing applies also to mail shipments of the products 
concerned. 
EXTERIOR QUARANTINE NO. 6. - RICE 
(Decree of May 12, 1S27) 
This is an absolute quarantine in its application to all countries 
except the United States. 
As applied to the United States, it is a partial quarantine, re- 
stricting the importation of seed or paddy rice from that country into 
Mexico, to prevent the introduction of leaf smut ( Sntyloma oryzae Syd.). 
blight ( Oospora oryz otorum Sacc), take-all or foot-rot disease, ( Q-phi- 
obolus cariceti (B. & Br.) Sacc. (0. graminis Sacc), glume blight (phoma 
glumarum Ell. & Tr.), downy mildew ( Sclerospora macro carpa Sacc), and 
flag smut of ;vheat ( Urocystis tritici Koern.). 
The general provisions governing partial quarantines are appli- 
cable to shipments from the United States. 
This quarantine does not affect husked or polished rice imported 
for food or industrial purposes, 
EXTERIOR QUARANTINE NO. 7. ~ BANANA PLANTS 
(Decrees of Nov. 17, 1927, and May 30, 192S) 
An absolute quarantine, on account of the banana root borer 
( Cosmopolites sordidus Germ.) and the Panama or wilt disease ( pusarium 
cubens e E. P. 3m.), prohibiting the importation into Mexico of banana 
plants and parts thereof from foreign countries. 
Banana fruits may be imported through the ports of Mexicali, 
Naco, and Ag^a Prieta when intended for food in the northern district 
