Russell
"It is also this power of penetration and speed of the 9th octave which not only unlocks the pressures of the lower inert gases, octave by octave, but also unlocks the pressures of the 8th, 7th, 6th and 5th octaves of radioactive elements. Most deadly among these are radium, thorium, actinium, strontium, barium, calcium, potassium, arsenic and phosphorus." [Atomic Suicide, page 262]

"Another example will help clarify this one. The gun maker builds a two-way gun but does not seal either end. If the tube is of the same dimension from one end to the other, the projectiles ejected from both ends could be the same size, but if he made one end larger than the other the projectiles ejected from one end would be smaller than those ejected from the other end. For this reason we say that carbon, sodium-chloride, or potassium-bromide would give equal projections from each end, for they are mated pairs, whereas sodium or potassium alone would give as unequal results as unequally mated pairs, and sodium-bromide, or potassium-iodide would give as unequal results in such an experiment as their cube crystals are distorted, and for the same reason." [Atomic Suicide, page 293]