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.
The deepest point in the Mariana Trench and in the oceans is Challenger Deep which is three hundred and forty kilometers off the coast of Guam. Mount Everest which is the highest point on the Earth's surface 5.49 miles is more than 1 mile shorter that the Challenger Deep (the deepest point in the ocean at 6.86 miles).