390 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL.84 



This Opuntia work has been most original and is almost novel in 

 the history of economic entomology, the only prior comparable case, 

 concerning the introduction of insects to kill oflf a dangerous plant, 

 having been the introduction of insects into Hawaii to destroy the 

 Lantana weed. The effective work of some of the insects, as illus- 

 trated in the plates of this report, has been extraordinary. The Board 

 has had frequent changes in personnel among its scientific members 

 and employees. Prof. T. Harvey Johnston, as we have shown, was 

 the first Scientific Controller. He resigned in February, 1923, and the 

 title of the ofiice was changed to Officer in Charge of the Scientific 

 Work. This position was held l)y Mr. J. C. Hamlin, from the United 

 States, from February, 1923, until May, 1924, when he resigned. 

 He was succeeded by Mr. W. B. Alexander, an Englishman, who 

 resigned in August, 1925. In October of that year the present Officer 

 in Charge, Mr. Alan P. Dodd, was appointed. Australian labora- 

 tories are under the charge of Mr. J. Mann, Mr. F. H. Roberts, T\Ir. 

 A. R. Taylor, and Mr, H. F. Nicholas, while the overseas work is 

 under the charge of Mr. R. C. Mundell, with headquarters at Uvalde. 

 Texas. Mr. Mundell is assisted by Mr. G. Barnette and Mr. M. G. 

 Rodriguez. Uvalde has been chosen as the overseas headquarters 

 since it is easy from that point to visit the most important cactus 

 centers such as the southwestern United States. Florida, Mexico, and 

 Central America. 



There is now an excellent organization in Queensland under the 

 Department of Agriculture and Stock, known as the Di-\'ision of 

 Entomology and Plant Pathology. Mr. Robert Veitch is the Chief 

 Entomologist and Chief of the Division. He had been previously 

 Entomologist to the Colonial Sugar Company and had been stationed 

 at Fiji. Mr. Veitch called in Washington in May, 1914, on his way 

 from England to enter upon the duties of Entomologist to the Sugar 

 Refining Company in the Fiji Islands. He has under him now J. L. 

 Froggatt, in charge of banana insect investigations, and H. Jarvis, 

 in charge of the Stanthorp area. These men have the rank of Ento- 

 mologist. There are three Assistant Entomologists, G. A. Currie. 

 A. A. Girault, and J. A. Weddell. Mr. Girault is an American, well 

 known for his work on the taxonomy of the parasitic Hymenoptera. 

 and was at one time connected with the Bureau of Entomology at 

 Washington. There are also three assistants of a lower grade. J. H. 

 Simmonds is the Plant Pathologist, with R. B. Morwood as an 

 assistant. 



Under this Division of Entomology and Plant Pathology there has 

 been issued this year (1929) a capital book entitled " Pests and Dis- 



