UNIVERSITY OF CALIFORNIA PUBLICATIONS 



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iGRICULTURAL SCIENCES. Charles B. Lipman, Ernest B. Babcock, and John W. 



Gilmore, Editors. Price per volume, $5. 

 Vol. 1. 1. The Distribution and Activities of Bacteria in Soils of the Arid 



Region, by Charles B. Lipman. Pp. 1-21. October, 1912 $0.20 



2. Studies on the Phenoldisulphonic Acid Method for Determining Nitrates 



in Soils, by C. B. Lipman and L. T. Sharp. Pp. 23-37. October, 1912. .15 



3. The Effects of Calcium and Magnesium Carbonates on Some Biological 



Transformations of Nitrogen in Soils, by W. P. Kelley. Pp. 39-49. 

 December, 1912 .10 



4. The Aluminum Reduction Method as Applied to the Determination of 



Nitrates in "Alkali" Soils, by Paul S. Burgess. Pp. 51-62. May, 



1913 . _ .15 



6. Studies Upon Influences Affecting the Protein Content of Wheat, by G. 



W. Shaw. Pp. 63-126. October, 1913 .76 



6. The Effect of Copper, Zinc, Iron and Lead Salts on Aminonification and 



Nitrification in Soils, by C. B. Lipman and P. S. Burgess. Pp. 127- 

 139. March, 1914 15 



7. Studies on Aminonification in Soils by Pure Cultures, by C. B. Lipman 



and P. S. Burgess. Pp. 141-172. April, 1914 25 



8. Humus and Humus-Nitrogen in California Soil Columns, by R. H. 



Loughridge. Pp. 173-274. August, 1914 1.00 



0. New Experiments on Alkali Soil Treatment (Preliminary Report), by 

 Charles B. Lipman and Leslie T. Sharp. Pp. 275-290, plates 1-4. 

 June, 1915 _ 15 



10. Fundamental Interrelationships between Certain Soluble Salts and Soil 



Colloids, by L. T. Sharp. Pp. 291-339. April, 1916 50 



11. Influence of the Composition and Concentration of the Nutrient Solu- 



tion on Plants Grown in Sand Cultures, by Arthur Hugo Ayres. Pp. 

 341-394, pis. 5-15. January, 1917 .60 



12. Certain Effects under Irrigation of Copper Compounds upon Crops, by 



R. H. Forbes. Pp. 395-494, plates 6-9. April, 1917 _ 1.00 



13. Experiments on the Effects of Constituents of Solid Smelter Wastes on 



Barley Growth in Pot Cultures, by 0. B. Lipman and W. F. Gericke. 



Pp. 495-587. March, 1917 ..._ _ 95 



Vol. 2. 1. Studies in Juglans L Study of a New Form of Juglans Calif arnica 

 Watson, by Ernest B. Babcock. Pp. 1-46, plates 1-12. December, 



1913 _ 60 



2. Studies in Juglans II. Further Observations on a New Variety of 

 Juglans California Watson and on Certain Supposed Walnut-Oak 

 Hybrids, by Ernest B. Babcock. Pp. 47-70, plates 13-19. October, 

 1914 _ 35 



5. Studies in Juglans, HI: (1) Further Evidence that the Oak-like Walnut 



Originates by Mutation, by Ernest B. Babcock. Pp. 71-80, pis. 20-21. 



September, 1916 ._.._*.*..*.*... 



.,.. 



Vol. 3. 1. New Grasses for CaMf ornla** I, ~Fhaldrts\*rteiioptrii Hack*:, "by P; B; 3 

 nedy. Pp. .l ; 2*,.plates. 1-8.-^ .Jujy,, 4917... 



.10 



.30 



2. Optimum MoistuwJ C0nch4on*3 "for Young* Leinott Tres; ojj 4 Lp*a,m 



by L. W. Fowler attd 'CV 'B'.- lip'ffiah'. ' 'Pp.* *25-3*6, 'places '9-ll. " 



tember, 1917 15 



3. Some Abnormal Water Relations in Citrus Trees of the Arid South- 



west and their Possible Significance, by Robert W. Hodgson. Pp. 

 37-54, plate 12. September, 1917 20 



GRICULTURE. The Publications of the Agricultural Experiment Station consist of Bul- 

 letins and Biennial Reports, edited by Professor Thomas Forsyte Hunt, 

 Director of the Station. These are sent gratis to citizens of the State of 

 California. For detailed information regarding them address The Agri- 

 cultural Experiment Station, Berkeley, California. 



