( ONI I NT-. IX 
Page. 
Oibcolab No 25 ["he Cost of Clearing Logged-Ofj Land for Farming 
in i in: Pacifn Nori bwest. 
[ntroduction 
The extent of logged-off land 4 
Hand method of clearing logged-off land 6 
I tonkey-engine method of clearing logged-off land 
Methods ol bui ning stumps 10 
l Be of chemicals in burning stumps 12 
\ -i nni | id mini nir machine 1- 
l se "i powder in clearing logged-off land 13 
i 08l of various methods of clearing land 14 
Circular No 26. Somi Factors Effecting the Keeping Qualities of Amer- 
!( AN I.I M 
Scoiif of the invest i-aii. m of the keeping qualities of le is 
Losses "i lemons from parasitic diseases 
I osses of lemons from blue mold 4 
Physiological weakness of lemons 4 
M'tled- of preparing lemons for market 5 
Physical characteristics of the differenl types of lemons <i 
Chemical characteristics of lemons s 
Acids 
Sugars 9 
Water content 10 
Keeping qualities of lemons 12 
Relation to structure 1- 
Texture 13 
Method of curing 13 
The most serious causes of decay of lemons r> 
Conclusion 17 
Circular No. 27. — Lime-Sulphur Mixtures tor thi Summer Spraying oi 
• >R< II \i;Hs. 
Introduction '■'• 
Lime-sulphur sprays 4 
Home-boiled lime-sulphur wash 4 
Factory -boiled or commercial lime-sulphur solution 4 
Self-boiled lime-sulphur mixture 5 
Peach foliage injury test 7 
Peach scab and brown-rot experiments 
Experiment in < i& irgia 
Experimenl in Illinois 
Experiment in Arkansas II 
Fruit staining 11 
Recommendations for the treatment of scab and brown-rot 11 
Cherrj leaf-spot experiments 12 
Results of the treatment 13 
Apple-scab experiments 15 
Circular No 28 Clover-Sees Pr noN in hie Willamette Valley, 
' >RBGON. 
[ntroduction 
Types of soils in the Willamette Valley 4 
l he seed yield of red clover 
