144 
PACIFIC SCIENCE, Vol. VI, April, 1952 
in this manner, the inherent properties of the 
day must be responsible for these attributes. 
The day has been identified as a montmoril- 
lonite type by differential thermal methods. 
REFERENCES 
Baver, L. D. 1928. The relation of exchange- 
able cations to the physical properties of 
soils, Amer. Soc. Agron., Jour. 20: 921-941. 
1932. The use of the Troemmer bal- 
ance for measuring upper plastic limit of 
soils. Amer. Soc. Agron., Jour. 24: 686-690. 
Cline, M, G., et al. In press. Soil survey of 
the Hawaiian Islands. U. S. Dept, of Agr. 
Hance, F. E., and G. R. Stewart. 1927. 
Replaceable bases in the soils of central 
Maui. Hawaii. Planters Rec. 31: 342-354. 
Kudrin, S. A., and A. N. Rozanov. 1940. 
The characteristics of sierozem containing 
a high content of magnesium. Pedology 2: 
52-65. 
Magistad, O. C., and P. S. Burgess. 1928. 
The use of alcoholic salt solutions for the de- 
termination of replaceable bases in calcareous 
soils. Ariz. Agr. Expt. Sta., Tech. Bui. 20. 
16 pp. 
Matsusaka, Yoshito, and G. Donald 
Sherman. 1950. Titration curves and buffer- 
ing capacities of Hawaiian soils. Hawaii Agr. 
Expt. Sta,, Tech. Bui. 11. 36 pp. 
McGeorge, W. T. 1930. The chemical and 
physical properties of Ewa Plantation soils 
as influenced by irrigation with artesian 
water. Hawaii. Planters Rec. 34: 179-219. 
Norton, F. H. 1939- Critical study of the 
differential thermal method for the identi- 
fication of the clay minerals. Amer. Ceramic 
Soc., Jour. 22: 54-63. 
Sherman, G. Donald, Yoshinori Kane- 
HiRO, and Charles K. Fujimoto. 1947. 
Dolomitization in semi-arid Hawaiian soils. 
Pacific Sci. 1(1): 38-44. 
Usov, N. I. 1937. Effect of adsorbed mag- 
nesium on saline properties of soil. Proc. 
Conf. Soil Sci. [Saratov] 1: 44-61. (Chem. 
Abs. 33: 8342, 1939.) 
Von Kreybig, I. L. 1935. Vorkommen, 
Eigenschaften und Wirtschaftlicher wert 
von Magnesia und Kaliboden in Ungarn. 
[3rd] Internatl. Cong. Soil Sci., Trans. 1: 
353-357. 
Walkley, a. 1935. An examination of 
methods for determining organic carbon 
and nitrogen in soils. Jour. Agr. Sci. 25: 
598-608. 
