448 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
Prickly-pear Board an invaluable service in the capacity of directing 
agent. The accomplishments have been profoundly influenced by his 
direction. 
The helpfulness of Doctor L. O. Howard, both personally and through 
his staff of assistants, has been a notable contribution to our work. 
Entomological specialists of the United States National Museum have 
been unanimous with their generous aid at all times. Messrs. J. L. 
Webb, D. C. Parman, and T. C. Barber of the Bureau of Entomology 
have been constant sources of help. 
To Doctor David Fairchild we are especially indebted for making 
available the Plant Introduction Garden at Miami, Florida as a field 
station, and for arranging several most useful connections with various 
people. His officer at Miami, Mr. Edward Simmonds, gave unstinted 
aid throughout the Florida work. 
Doctor J. J. Thornber sent specimens of a cochineal insect from 
Arizona which is among the most important organisms dealt with in 
the work. 
Doctor J. K. Small generously allowed the use of his cactus garden 
on the Charles Deering estate at Buena Vista, Florida, and the superin¬ 
tendent of this estate, Mr. Morrison, has been most helpful. 
For extensive helpfulness in regard to the cactus diseases Doctor 
F. A. Wolf is an outstanding figure. Doctors W. A. Orton, O. F. Bur¬ 
ger, and J. J. Taubenhaus were also contributors to our work in this 
connection. 
During investigations in the Republic of Mexico, Doctor A. L. 
Herrera, Mr. J. M. Gallegos, and Doctor N. P. Escobar have most 
kindly facilitated our work. 
One of the greatest contributions was that of the Oceanic Steam¬ 
ship Company. All consignments were sent via their S. S. “Sonoma” 
absolutely free of charge, and the company designated the Second 
Officer to give personal care enroute as per our instructions. Further¬ 
more, this generous concern returned all empty shipping cases from 
Australia without cost. In this way a total of 207 cases were trans¬ 
ported for the Board. Mr. H. I. Graham was largely instrumental in 
making these concessions. 
Preliminary Activities 
During November and December, 1920 the writer was fortunate to 
secure an excellent orientation with the project by conferring with 
many specialists in subjects pertaining to the problem, by inspecting the 
