144 MISCELLANEOUS PUBLICATION 9, U. S. DEPT. OF AGRICULTURE 



The Bureau of Public Roads and Its exhibit : Supplementing exhibit of the Bureau of 

 rublic Hoa.ls at thn Brazil •("••ntt-nnlal Exposltlou, Rio de Janeiro, Brazil, 1922-23. 

 Tliumas 11. MmDoiiuld. Iii22. 



Prime pvrntol tlils way. 11)24. Reprint 102r,. 



Koad under coiisi ruction : M:ip of tl" tour. U»24. 



Rfijort uf a study of liigliway Iraflli' and tlie hlshway system of Cook County, 111., by 

 the Bureau of Tubllc Roads and the Tiiok County Highway Department. 192o. 



BUREAU OF SOILS" 



ANNTJAL REPOKT8 



iniil. Mllf-m Whitnev. 



1!MI2. Milton Whitnev. 



l'"»:i. Milton Uldlnoy. 



l«t)4. MMton Whitney. 



I'.tii.-). Miltun Whitnev. 



lIMid. Milt. in Whitney. 



10<|-. .Milton Wliltnev. 



IJHiM. Milton Whitnev. 



liiti'.t. .Milton Wliitnev. 



liUO. Milton Whitnev. 



]!>n. Milton Whitnev. 



1!)12. Milton Whitney. 



1P18. Milton wndtney. 

 1014. Milton Whitney. 

 1915. Milton Whitney. 

 lltlH. Milton Whitney. 

 1»17. Mili.iu Whitney, 

 litis. Milton Whitney. 

 191!». Milton Whitnev. 

 1i»20. Milton Whitnev. 

 1922. Milton Whitnev. 

 192.3. Wilton Whitney. 

 1924. Milton Whitney. 



BULI,ETIN8 



17. 



the cla.ssiflcatlon of alkaii lands. 

 Frank K. Cameron, Lyman J. 

 Lyman J. Brings and 

 Milton Whitney. 



Soil solutions : Their nature and functions, and 

 Frank K. f'nmernn. lf»01. 



18. Solution .studios of s.nlts occurring in alkali soIIh. 



RilcTKR, and .\tlierton Si-ldell. 1901. 



19. Capillary studies and filtration of clay from soil solutions. 



Macy II. Laphnin. 1902. 



20. Growing,' Sumatra tobacco nndor sh.ide In the Connecticut Valley. 



1902. 



21. Reclamation of alkali lands in Egjpt : As adapted to similar work in tlie United 



States. Thos. II. Means. 1903. 



22. The cliemistrv of the .soil as related to crop production. Milton Whitney and F. K. 



rnineron. 11)03. 



23. Invostijintions in soil fertility. Milton Whitney and F. K. Cameron. 1904. 



24. The centrifugal method of mechanical soil analysis. Lyman J. Brings, F. O. Martin, 



and .1. R. I'earce. 1904. 



25. Contributions to our knowledge of the aeration of soils. Edgar Buckingham. 1904. 

 2t5. Investigations In soil management. F. H. King. 1905. 



27. E.vperlmonts in growins Cuban seed tobacco in Texas. George T. McNcss and Walter 



M. Ilinson. 1905. 



28. Studies on the properties of an unproductive soil. Burton Edward Uvlngston, .7. C. 



Hritton. and V. R. Reid. 1905. 



29. Tobacco investigations In Ohio. George T. McN'ess and George B. Massey. 19il5. 



30. The mineral constituents of the soil solution. Frank K. Cameron and James M. Bell. 



1905. 

 81. Colortmetric, turbidity, and titration methods used In soil investigations. 0.«wald 

 S'hreiner and George H. Fallyer. 190«. 



32. The absorption of phosphates and potassium by soils. Oswald Schreiner and George 



11. Failyer. 190rt. 



33. Calcium s'ulpliate in aqueous solutions: A contriliution to the study of alkali deposits. 



Frank K. Cameron and James M. Bell. 1900. 



34. Reclamation of alkali soils. Clarence W. Dorsey. 1900. 



35. Alk.ili soils of the I'nited States: A review of literature and summary of present 



information, ("larence W. Dorsey. 19(M?. 

 86. Further studies on the proi>ertles of unproductive soils. Burton Edward Livingston, 



Clinrles A. Jensen, J. F. Breazeale, F. R. I'einber, and J. J. Skinner. 190". 

 37. Exiierinients in irrowing Cuban seed tobacco in Alabama. George T. McNess and Lewis 



W. Ayer. 1900. 

 3R. Studies on the movement of soil moisture. Ed-^ai- Rnckingliain. 1907. 

 .S!i. I-:(Tects of shading on soli conditions. J. B. Stewart. 19(>T. 



40. Some factors InMuenclng soil fertility. Oswald ."Schreiner and Howard S. Reed. 1907. 



41. The action of wat'T and iKiueoiis solutions upon soil phosphates. Frank K. Cameron 



and James M. Hell. 1007. 



42. Reclamation of whIte-ash lands affected with alkali at Fresno, Calif. W. W. Mackle. 



1'.MI7. 



43. RtH'lamatlon of alkali land In Salt Lake Viilley. Utah. Clarence W. Dor.sey. 1907. 



44. Reclamation of alkali soils at Billinga. Mont. Clarence W. Dorsey. 1907. 



4r». The moisture eoulvalents of soils. I,ymnn J. Brlggs and John W. McLane. 1907, 

 40. Iinproveinent of Virginia fire-cured tobacco. George T. McNess. K. II. Matliewson, 



and B. <;. Anderson. 19<»7. 

 47. Certain organic constituents of soils in relation to soil fertility. Oswald Schreiner, 



Howard S. Heed, ami J. J. Skinner. 190". 



45. Fertility of soils as nfTectifl by manures. Frank D. Gardner. 1908. 



49. The action of water and aqueous 8<dution8 upon soil carbonates. Frank K. Cameron 



and James M. Bell. 19()7. 

 CO. Moisture content and physical condition of soils. Frank K. Cameron and Francis B. 



Gallagher. 1908. 

 51. Absorption of vapors and gases by soils. Uarrlson E. Patten and Francis B. QaJla- 



gher. 1908. 

 62. Absorption by soils. Harrison E. Patten and William H. Waggaman. 1908. 



»' Organized as a division prior to 1902. 



