Unit Weight Of Water Research Articles

Occurance of Withered and Completely Sterile Panicles in Rice Plants Attacked by Typhoon, with Special Reference to Varietal Resistance : (II) Some Characters of Resistive and Sensitive Varieties

Resistive varieties seemed to have shorter culms, thicker tracheas, and wider leaves in proportion to the length of the leafblade, than sensitive varieties .in the resistive varieties, the leafblade area per unit weight of water contained in the tissue, the number of stomatas per unit area, and consequently the number of stomatas per unit weight of water contained were smaller than those in sensitive varieties. When the stem which had been cut off below the top-leaf was inserted in bottle containing water and leaved in-door over night, the degree of leafrolling in resistive varieties was very slight compared with sensitive varieties.

2. The Electrical Conductivity of certain Saline Solutions, with a note on their Density

In the note on the density of the solutions prepared for the purpose of determining their electrical conductivity, it is shown that the ratio of the weight of salt dissolved in unit weight of water to the excess of the density of the solution thus formed over that of water (unity), is not constant, but increases, with greater or less rapidity, from the more dilute to the more dense. The work of previous experimenters on the electrical resistance of liquids is then reviewed at some length. Their chief difficulty has always been the electrolytic polarisation of electrodes.