BUREAU OF PLANT QUARANTINE 61 
In addition to the freight cars listed in table 33, 2,650 Pullman and passenger 
coaches crossed the border and were inspected. 
Plant-quarantine inspectors on the Mexican border take an active part, in 
cooperation with the Customs Service, in the inspection of vehicles, baggage, 
personal effects, and express packages from Mexico. Approximately 4,000,000 
vehicles crossed the border from Mexico during the fiscal year, and 136,691 pieces 
of baggage were examined. The inspection of these vehicles and baggage 
resulted in the interception of a large quantity of prohibited plant material. 
A record of such interceptions appears in table 38. 
INSPECTION IN PUERTO RICO AND HAWAII 
In addition to the enforcement of the foreign-plant quarantines and regulatory 
orders, inspectors stationed in Puerto Rico also enforce the provisions of Quaran- 
tine No. 58. This involves the inspection of fruits and vegetables in the fields, 
in packing houses, and on the docks, and all shipments of such products moving 
to the mainland have been certified as free from pests. 
Parcel-post packages originating on the island and destined for points on the 
mainland are also inspected. Eight hundred and twelve such packages were 
inspected, and seventy-five were found to contain prohibited plant material and 
were returned to the sender. 
A record by months of the amounts of fruits and vegetables inspected and 
certified for shipment to the mainland appears in table 34. 
