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100 A wire laid across from either of the above named places on this side to the north of the Grand Banks, will rest on that beautiful plateau to which I have alluded, and where the waters of the sea appear to be as quiet and as completely at rest as it is at the bottom of a mill pond. It is proper that the reasons should be stated for the inference that there are no perceptible currents and no abrading agents at work at the bottom of the sea upon this telegraphic plateau. I derive this inference from the study of a physical fact, which I little deemed, when I sought it, had any such bearings.

Lieutenant Berryman brought up, with "Brooke's" deep-sea sounding apparatus, specimens of the bottom from this plateau. I sent them to Professor Bailey, at West Point, for examination under his microscope. This he kindly undertook, and that eminent microscopist was quite as much surprised to find, as I was to learn, that all these specimens of deep-sea soundings are filled with microscopic shells. To use his own words, "not a particle of sand or gravel exists in them." These little shells therefore suggest the fact that there are no currents at the bottom of the sea whence they come; that Brooke's lead found them where they were deposited in their burial-place. . ..

Had there been currents at the bottom, they would have swept and abraded and mingled up with these microscopic remains the débris of the bottom of the sea, such as ooze, sand, gravel, and other matter; but not a particle of sand or gravel was found among them. Hence the inference that these depths of the sea are not disturbed either by waves or currents. Consequently, a telegraphic wire once laid there would remain as completely beyond the reach of accident as it would be if buried in air-tight cases.

Therefore, so far as the bottom of the deep sea between Newfoundland, or the North Cape at the mouth of the St. Lawrence and Ireland is concerned, the practicability of a submarine telegraph across the Atlantic is proved. In this view of the subject, and for the purpose of hastening the completion of such a line, I take the liberty of suggesting for your consideration the propriety of an offer, from the proper