Acidity distribution within any given soil profile is dependent on
mineralogical make-up of the parent material as well as environmental conditions prevalent during the weathering history of the soil.
An experiment was designed to study the distribution pattern of exchange acidity, exchangeable aluminum, exchangeable manganese and
pH of six acid...
Twelve N, N'-bis(hydroxy- and methoxybenzoyl)ethylenedi-amines and piperazines have been prepared, tested for antifungal
activity, and screened for gross pharmacological activity in mice.
All twelve compounds showed some activity against Candida albicans,
Trichophyton mentagrophytes and Microsporum gypseum but in every
case the activity was less than that of salicylanilide used as...
The mechanism of continuously chlorinated silver-silver
chloride electrode performance was studied by using a wiped, rotating,
partially submerged, cylindrical silver cathode. The cell
performance using a zinc anode was measured, and the rate of
chlorination of silver was calculated for several water saturated
chlorine atmospheres.
At 75°F, with a chlorine...
The principal salinity extrema and extremum surfaces of the
world ocean are described by the analysis and plotting of data from
885 hydrographic stations in the three major oceans, the Southern
Ocean, and the American Mediterranean Sea. The distributions of
salinity, temperature, depth, and density along the extremum surfaces,
plotted...
The presented study was undertaken to determine the
operational catabolic carbohydrate pathway(s) contributing
to the synthesis of the DNA of the actinophage for
Streptomyces griseus. The incorporation of glucose-6-¹⁴C versus glucose-1-¹⁴C was determined for the
deoxyribose and purine and pyrimidine bases of the phage
DNA. The specific activities of the...
In this study of toxigenic and non-toxigenic strains of Clostridium
botulinum type E, attempts were made to induce toxin production
in non-toxigenic cultures by exposure to mutagenic agents
and to differentiate the organisms by immunodiffusion. First, cultures
of non-toxic Cl. botulinum type E were exposed to various
mutagenic agents in...