Decembei-, '08] JOURNAL OF ECONOMIC ENTOMOLOGY 345 



tions by Barkbeetles, and General Study of the Forest Insect Fauna 

 of Western Texas and Southern New Mexico. 



25. Investigations in the National Forests. 



26. Inspections and Estimates of Insect-Killed Timber in the 

 National Forests of Colorado. 



27. Injuries by Bark- and Wood-Boring Insects to Trees Defoliated 

 by the Gypsy Moth and Browntail Moth. 



28. Diseases of the Larch Sawfly. 



29. The Fauna and Flora of a Larch Swamp at Cranesville, W. Va. 



30. Breeding Insect-Eesistant Forest Trees. 



31. Practical Application of Results of Forest Insect Investigations 

 — Forest Insect Control as Applied to Private Interests. 



32. Insect Control of the National Forests — Cooperative project, 

 Bureau of •Entomology and Forest Service. 



33. Systematic and Economic Investigations of the Bark Lice of the 

 Genus Chermes. 



Work on a number of these projects has been completed, and full 

 reports and recommendations published, as well as expert informa- 

 tion and advice given out in correspondence. Encouraging progress 

 is being made on the remainder, some of which it will take many 

 years to complete. 



Results 



Satisfactory progress has been made towards the attainment of 

 some of the fundamental objects of the investigations, one of which 

 has been the laying of a substantial foundation for forest entomology 

 in this country, on which future progress can be made along the lines 

 of acquiring, disseminating, and applying information of immediate 

 practical value in the protection of our forest resources. The prin- 

 cipal results of the past six years' work which have contributed to 

 this end may be summarized as follows : 



Acquired New Information 



(1) The principal insect enemies of the forest and forest products 

 of North America, and the general character and extent of their 

 depredations have been determined; 



(2) Evidence has been accumulated which indicates quite clearly 

 that insects are now causing a greater average annual loss of matured 

 timber and forest products in the United States than that resulting 

 to the same class of resources from forest fires. It has been deter- 

 mined that many extensive denuded areas of the Rocky Mountain 

 region, supposed to have been caused by fire, were primarily due to 



