THE PINK BOLLWORM 19 
one in Oakland, Calif. A little later two additional plants were 
erected at New York City and one at Newark, X. J. Plants are 
now available at Seattle, Wash., Oakland and San Francisco, Calif., 
and Astoria and Portland, Oreg. These establishments have a 
capacity sufficient to handle all of the imported cotton without 
any special delay. The larger plants have a capacity of upward 
of 1,000 bales per day. 
The procedure to be followed in the fumigation of foreign cotton 
is given in an order of the Federal Horticultural Board (i§) 6 . 
Later investigations led to the placing of restrictions on certain 
kinds of cotton waste, cotton wrapping material and cottonseed 
products. On April 11, 1916, the collector of customs at Norfolk, 
Va., telegraphed the board that some 189 tons of cottonseed from 
Lagos, West Africa, constituted a portion of the cargo of the British 
steamship Appam, brought to Xewport Xews as a German prize 
of war. In cooperation with the Office of Markets the board took 
immediate steps to dispose of this seed, which was found to be 
infested by the pink bollworm. A provisional sale had been made 
by the admiralty board to the proprietor of an oil mill in South 
Carolina. This was set aside as soon as the danger of introducing 
the pink bollworm was explained. After considering a number of 
methods of disposing of this seed, it was finally decided to have 
it treated with sulphuric acid and thus made available as a fertilizer. 
Through the cooperation of one of the largest manufacturers of 
fertilizers this was done with the utmost dispatch. The entire 
lot of 4,000 bags of seed was placed in sulphuric-acid vats within 
four days from the time the presence of the seed at Xewport Xews 
became known to the department. As an additional precaution 
the two holds of the Appam which contained the seed were fumi- 
gated with a heavy dose of hydrocyanic acid gas, and the docks, 
lighters, and trucks, as well as floors and platforms, were thoroughly 
cleaned of any scattered seeds. 
To guard against the possibility that the pink bollworm had 
escaped prior to the treatment which has been described, repeated 
inspections were made later of the cotton fields near Xewport Xews, 
which are at a distance of about 10 miles. Xo traces of infestation 
have been found, and it now seems certain that the establishment 
of the insect from this seed was prevented. 
DISCOVERY IN MEXICO 
Earlier in this bulletin attention has been directed to the fact that 
when the quarantine against foreign cottonseed was placed in 
operation the State of Lower California, Mexico, was not included, 
and that subsequently cottonseed was permitted entry, for milling 
purposes only, from certain northern States of Mexico. The reason 
for this was that several of the entomologists of the department had 
been in northern Mexico and had found no traces of infestation by 
any insects other than those which are known to occur in the United 
States. These explorations were made some years previously, how- 
ever, and it was thought desirable to make new examinations on ac- 
6 Detailed information as to the activities of the Federal Horticultural Board and its 
quarantine and other restrictive orders and regulations relating to cotton and cotton 
products, may he found in its service and regulatory announcement^. 
