Appendix, 143 



manufacturing and widely distributing a concentrated solid compound 

 of lime, sulphur and salt. This in convenient packages was easily and 

 cheaply transported, ready for use by the addition of hot water as per 

 directions. As the preparation of this spraying material was somewhat 

 of a painstaking, tedious process, Dunne's solid spray was opportune 

 and was endorsed by the Boai'd and State Agricultural College. Lime, 

 sulphur, and salt are largely used in the Eastern States and all over 

 the country effectively for San Jose scale, fungi and other pests. It 

 is knowTi as the Oregon Spray. This in competitive tests has been 

 awarded two gold medals, and is believed to be the most efficient in- 

 secticide known, specifically effective in the destruction of the San Jose 

 scale. Later, Mr. Dunne manufactured a liquid spray, sulphur and 

 lime, which it is claimed, is equally effective. Sprays No. 1 and No. 2, 

 the orginal solid form, are yet extensively used. 



ECONOMIC FORESTRY. 



By Edmund P. Sheldon, 

 Read before the Oregon State Horticultural Society. 



It may be stated without fear of contradiction that outside of food 

 products no material is so universally used and so indispensable to 

 human needs as wood. 



Civilization is built on wood, over half the people in the world live 

 in wooden houses and the other half live in houses in which wood enters 

 into the construction. Wood serves to ornament our homes, to warm 

 them — more than two-thirds of the people of America still use wood as 

 fuel. There is hardly a human activity but what wood has played an 

 important part. Miners need timbers for their mines, railroads require 

 millions of wooden ties, and millions more for renewal every year. 

 With such a demand for wood, and its rapid disappearance in America, 

 the economy of forestry makes an interesting matter for us to con- 

 sider. Furthermore, here in Oregon where we have the greatest supply 

 of untouched timber as yet left in the United States, it becomes worth 

 our while for a time to consider the great resource which is at our 

 disposal, and also to consider some of the dangers which lie ahead of 

 us as a State, and especially as a fruit-producing State, if proper 

 methods of economy are not pursued in conserving this, the State's 

 greatest natural resource. In order to produce fruit we must have the 

 continuous flow of streams and rivers which rise in forested regions. 

 If the forests at the head of such streams are preserved, a perpetual 

 flow of water is assured. When those forests ai'e removed, floods, 

 drouths and disaster follows in the wake of such removal. 



