...floes, even against the Oya Shiwo. The surface of these fields of ice is very uneven and hunimocky, thus giving the wind considerable hold, the piled-up...varies from about 12 to 30 feet, the snow upon it is adding considerable to its bulk. These ice fields eventually all rind their way through the straits...

...islands, whera it often blocks the coasts and straits for many miles. The thickness of the floating ice usually varies from about 12 to 30 feet, the snow upon it adding considerably to its bulk. Local ice is also formed during the winter throughout the Kuriles. The ice orainarily disappears by...