INDEX TO AMERICAN BOTANICAL LITERATURE II9 
Jones, L. H. & Shive, J. W. Influence of ammonium sulphate 
on plant growth in nutrient solutions and its effect on 
hydrogen-ion concentration and iron availability. Ann. 
Bot. 37: 355-378. f. 1-6. Jl 1923. 
Kearney, T. H. Segregation and correlation of characters in 
an upland-Egyptian cotton hybrid. U. S. Dept. Agr. 
Dept. Bull. 1164: 1-58. pl. r-21 + f. 1-41. 10 Au 1923. 
Kelley, A. P. Soil acidity, an ecological factor. Soil Sci. 16: 
SiI-S4. fo 7, 22-31-1923. 
Kempton, J. H. Inheritance of dwarfing in maize. Jour. Agr. 
Research 25: 297-322. pl. 1-5 + f. 1-9. 18 Au 1923. 
Kempton, J. H. Inheritance of mesocotyl length in hybrids of 
brachytic maize. Am. Nat. 57: 374-377. f. 1. Au 1923. 
Kidder, N. T. Further notes on the plants of Isle au Haut 
[Maine]. Rhodora 25: 147, 148. 28 Au 1923. 
Kofoid, C. A., Severin, H. H. P., & Swezy, O. Nelson’s spiral 
bodies in tomato mosaic not protozoans. Phytopathology 
133° 430, 331.28 Tf 10993: 
Korstian, C. F. Density of the cell sap of plants in relation to 
environmental conditions. Jour. E. Mitchell Sci. Soc. 
39: 63-69. Au 1923. 
Kotila, J. E., & Coons, G. H. Trypanosome-like bodies in 
Solanaceous plants. Phytopathology 13: 324, 325. 28 
3. 
AT 
Levine, M. Studies on plant cancers—IV. The effects of 
inoculating various quantities of different dilutions of 
Bacterium tumefaciens into the tobacco plant. Bull. 
Torrey Club 50: 231-243. 27 Jl 1923. 
Lindstrom, E. W. Genetical research with maize. Genetics 5: 
327-356. J1 1923. 
Lloyd, F.E. A method of ultramicroscopy whereby fl 
in the Cyanophyceae and Diatomaceae may be demon- 
strated. Science II 58: 91, 92. 3 Au 1923. 
