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.
Challenger Deep in the Mariana Trench (or Marianas Trench) is the deepest point in Earth's oceans. The bottom there is 10,924 meters (35,840 feet) below sea level.