Index 



effect of age of vine, 105; com- 

 parison of grapes on north and 

 south sides of vines, 106; effect 

 of location of bunch of, on cane, 

 106, table showing, 107; variation 

 in balling degree in must, 107, 

 table showing, 107-108; effect of 

 location of berries, 109, of thor- 

 oughness of pressing, 109; preser- 

 vation of samples, 109; methods 

 of analysis, 111; analyses of 

 must, 111, tables of, 112-115; 

 differences between total solids 

 and sugar, 126, graph showing, 

 126, table of, 127; variation in 

 protein, 128, graph showing, 128; 

 summary of changes, 129-130. 



Varieties studied, and ripening tests 

 of: 

 Burger, 114, 116, graph of, 123. 

 Catawba, 115, 116, 126, graph of, 



124. 

 Cornichon, 112, 114, 116, graphs of, 



119, 123. 

 Emperor, 113, 116, graph of, 119'. 

 Malaga, 112, 113, 125, graphs of, 



117, 120. 

 Muscat, 113, 115, 116, 125, 126, 



graphs of, 120, 124. 

 Pedro zumbon, 113, graph of, 121. 

 Sultana, 113, 116, graph of, 121. 

 Sultanina, 114, graph of, 122. 

 Tokay. 112, 114, 116, 125, graphs 

 of,*118, 122. 



Grasses, New, for California, 1. See 

 also Phalaris stenoptera. 



Grasses of California, conditions of 

 growth, 1. See also Phalaris 

 bulbosa. 



Greenhouse soil, use of, in experi- 

 ments, 273. 



Growth and absorption in plants, re- 

 lationship between, 148. 



Gypsum, in relation to soil, 272, 282. 



Ilaberlandt, G., cited, 327. 



Hackel, E., quoted, 3. 



Hall, A. D., cited, 272. 



Hall, A. D., Brenchley, W. E., and 

 Underwood, L. M., cited, 322. 



Hall, A. D., and Bussell, C. J., cited, 

 470. 



Hanford soil type, 378-498. 



Harding, B. B., curator of Botanic 

 Gardens, Toowoomba, Queensland, 

 1. 



Harding grass, proposed name for 

 new grass, Phalaris stenoptera 

 (tvhich see), 5. 



Heilbronn, A., cited, 327. 



Hilgard, E. W., cited, 103, 373, 374; 

 elutriator method of soil analysis, 

 380, 468. 



Hodgson, B. W., 37, 283. 



House, cited, 156. 



Howard, A., cited, 325. 



Ikeda, H. T., cited, 293. 



Illinois Agricultural Experiment Sta- 

 tion, soil survey and classifica- 

 tion, 375-376. 



India, 283; soil aeration in, 323. 



Indigofera arrecta, 309. 



Insect injuries in relation to abscis- 

 sion, 392, 306. 



Intercrops (intercropping), effect of, 

 on abscission (June drop), 329, 

 330. 



Investigation of the Abnormal Shed- 

 ding of Young Fruits of the 

 Washington Navel Oranges, 283. 



Iodine test of soils, 421. 



Ion absorption, 138, 139, 140, 280. 



Iron, 140, 144, 150, 151, 152, 153, 154, 

 158, 164, 281; water soluble iron 

 content, 276. 



Irrigation necessary to most Califor- 

 nia grasses, 1; moisture content 

 problem of, 25, 29. 



Jamaica, 327. 



Java, 283. 



Jennings, H., and Blair, A. W., cited, 

 473. 



Jensen, C. A., acknowledgment to, 26. 



June drop, physiological disease of 

 Citrus, 37, 38, 39-40; investiga- 

 tions of, 285; nature of, 288; time 

 of appearance, 304; methods of 

 amelioration, 329. See also Ab- 

 scission ; Washington Navel orange. 



Katydid, fork-tailed, 292; illustration 

 of work of, on oranges, opp. 348. 



Kearney, T. H., and Cameron, F. K., 

 cited, 83, 89, 95. 



Kelhofer, W., cited, 103. 



Kellogg, C. W., 285; acknowledgment 

 to, 333; picture of orange orchard 

 of, opp. 336. 



Kenicott-Sargent colorimeter, 255. 



Kennedy, P. B., 1. 



Knight,' L. I., cited, 295. 



Kratzmann, E., 157. 



Laboratory error in determining nitri- 

 fication in soils, 256, 257, 262, 264. 



Leaf area, in Washington Navel 

 orange, effect on abscission, 310. 



Leitch, I., cited, 325. 



Lemon, not susceptible to abscission, 

 329. 



Lemon Trees, Young, on a Loam Soil, 

 Optimum Moisture Conditions 

 for, 25; plan of experiment on, 

 26; results, 27-28, figure and 

 plates showing, opp. 32, 34, 36; 

 optimum per cent of moisture 

 content, 28; range of soil mois- 



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