. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 238 THREE CRUISES OF THE " BLAKE. its way north between the Bahamas and the Bermudas, and that there is a deep hole in ^hich the enormous depth o£ 4,561 fathoms has been sounded by Lieutenant - Commander Brownson, with a temperature of 36°. The same temperature (between 36° and 37°) is found to be the bottom temperature in the sections taken to the northward, the only exceptions being a few colder soundings (a temperature of 35°) met within the lines off Norfolk, off Cape May, and off Nantucket, at a dis


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 238 THREE CRUISES OF THE " BLAKE. its way north between the Bahamas and the Bermudas, and that there is a deep hole in ^hich the enormous depth o£ 4,561 fathoms has been sounded by Lieutenant - Commander Brownson, with a temperature of 36°. The same temperature (between 36° and 37°) is found to be the bottom temperature in the sections taken to the northward, the only exceptions being a few colder soundings (a temperature of 35°) met within the lines off Norfolk, off Cape May, and off Nantucket, at a distance of about three hundred miles from the coast. At a depth of 600. Fig. 167. fathoms, off San Domingo, the temperature is 42° ; at 500 fath- oms, it is 45°. Off the northern extremity of the Bahamas it was about the same. Owing to the abruptness of the slope and the absence of serial soundings, we have no data regarding the thick- ness of this body of cold water, with a temperature of about 36°, which covers the bottom. Farther north this temperature begins at a depth of about 1,500 fathoms. In the sections taken off the Middle States, the temperature falls very rapidly, being 75° at the surface, while at a depth of 1,000 fathoms it is not more than 38° ; and judging from the single section to the eastward. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum


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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology