406 
PACIFIC SCIENCE, Vol. XVII, October 1963 
McGeorge, W. T. 1925. The influence of Al, 
Mn, and Fe salts upon the growth of sugar 
cane, and their relation to the infertility of 
acid island soils. Hawaiian Sugar Planters’ 
Assoc. Expt. Sta. Bull. Agri. Chem. Sec. 49. 
McLean, F. T., and B. E. Gilbert. 1927. The 
relative aluminum tolerance of crop plants. 
Soil Sci. 24(3): 163-174. 
Moo MAW, J. Q, and M. Takahashi. I960. 
Vegetation on gibbsitic soils in Hawaii. J. 
Arnold Arb. 61:4, 391-411. 
Nagata, T. 1954. Influence of Al-ion concen- 
tration on the absorption of nutrients by 
plants. I, II. J. Sci. Soil Manure Japan 24: 
255-262. (C A. 48, 7710). 
Plucknett, Donald L. 1961. Root growth in 
bauxitic soils. Hawaii Farm Sci. 10(1) :8-9. 
Ragland, J. L., and N. T. Coleman. 1959- 
The effect of soil solution aluminum and cal- 
cium on root growth. Soil Sci. Proc. 23:35 5— 
357. 
Sherman, G. D. 1958. Gibbsite-rich soils of the 
Hawaiian Islands. Hawaii Agri. Expt. Sta. 
Bull. 166. 
TRENEL, M., and F. ALTEN. 1934. Die physi- 
ologische Bedeutung der mineralischen Bo- 
denaziditat. Angew. Chem. 46:313-320. 
Troughton, A. 1957. The underground or- 
gans of herbage grasses. Commonwealth Bur. 
Pastures and Field Crops Bull. 44. 163 pp. 
Weaver, J. E. 1920. Root development in 
grassland formations. A correlation of root 
systems of native vegetation and crop plants. 
Carnegie Inst., Wash. Publ. 292. 151 pp. 
1926. Root Development of Field 
Crops. McGraw-Hill Book Co. Ltd., N. Y. 
291 pp. 
and F. W. Albertson. 1943. Resur- 
vey of grasses, forbs, and underground plant 
parts at the end of the great drought. Ecol. 
Monogr. 13:63-117. 
and R. W. Darland. 1949. Soil-root 
relationships of certain native grasses in vari- 
ous soil types. Ecol. Monogr. 19:303-338. 
Womack, Durwajrd W. I960. Tentative De- 
scription Legend of the Soil Survey of the 
Island of Kauai. May, I960. Soil Conservation 
Serv., State of Hawaii. (Mimeo.) 
Wright, K. E. 1937. Effects of phosphate and 
lime in reducing aluminum toxicity of acid 
soils. Plant Physiol. 12 ( 1 ): 173-181. 
— - — — 1943 . Internal precipitation of P in 
relation to Al toxicity. Plant Physiol. 18:708- 
712. 
— 1945. Aluminum toxicity: Microchem- 
ical tests for inorganically and organically 
bound phosphorus. Plant Physiol. 20:310- 
312. 
— and B. A. Donahue. 1953. Aluminum 
toxicity studies with radioactive phosphorus. 
Plant Physiol. 28:674-680. 
