At home was several hours' hack-work waiting for him before he went to bed, and after he went to bed there was a volume of Weismann waiting for him, to say nothing of Herbert Spencer's Autobiography, which was as replete for him with romance as any thrilling novel.
The ocean's deepest area is the Mariana Trench (also called the Marianas Trench), which is about 11 km (almost 7 miles, or almost 36,000 feet) deep. The trench is 1,554 miles long and 44 miles wide, and is like the Grand Canyon of the ocean, although it is 120 times larger.
MARIANAS TRENCH. Deepest portion of world's oceans located in the Western Pacific. This is location where floor of Pacific Ocean descends back into the Earth. The deepest portion of this area is called the Challenger Deep and plunges to a depth of 7 miles. hms challenger British navy ship that collected samples and measurements across Atlantic, Indian and Pacific oceans and laid foundation for modern science of oceanography