Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 1 - By Alexander Von Humboldt And Aime Bonpland.

































































































































 -  I invite naturalists to examine
whether other flying-fish, for instance the Exocoetus exiliens, the
Trigla volitans, amid the T - Page 227
Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 1 - By Alexander Von Humboldt And Aime Bonpland. - Page 227 of 779 - First - Home

Enter page number    Previous Next

Number of Words to Display Per Page: 250 500 1000

I Invite Naturalists To Examine Whether Other Flying-Fish, For Instance The Exocoetus Exiliens, The Trigla Volitans, Amid The T. Hirundo, Have As Capacious An Air-Bladder As The Flying-Fish Of The Tropics.

This last follows the heated waters of the Gulf-stream when they flow northward.

The cabin-boys amuse themselves with cutting off a part of the pectoral fins, and assert, that these wings grow again; which seems to me not unlikely, from facts observed in other families of fishes.

At the time I left Paris, experiments made at Jamaica by Dr. Brodbelt, on the air contained in the natatory bladder of the sword-fish, had led some naturalists to think, that within the tropics, in sea-fish, that organ must be filled with pure oxygen gas. Full of this idea, I was surprised at finding in the air-bladder of the flying-fish only 0.04 of oxygen to 0.94 of azote and 0.02 of carbonic acid. The proportion of this last gas, measured by the absorption of lime-water in graduated tubes, appeared more uniform than that of the oxygen, of which some individuals yielded almost double the quantity. From the curious phenomena observed by MM. Biot, Configliachi, and Delaroche, we might suppose, that the swordfish dissected by Dr. Brodbelt had inhabited the lower strata of the ocean, where some fish* have as much as 0.92 of oxygen in the air-bladder. (* Trigla cucullus.)

On the 3rd and 4th of July, we crossed that part of the Atlantic where the charts indicate the bank of the Maal-stroom; and towards night we altered our course to avoid the danger, the existence of which is, however, as doubtful as that of the isles Fonseco and St. Anne.

Enter page number   Previous Next
Page 227 of 779
Words from 61643 to 61936 of 211363


Previous 227 228 229 230 231 232 233 234 235 236 Next

More links: First 10 20 30 40 50 60 70 80 90 100
 110 120 130 140 150 160 170 180 190 200
 210 220 230 240 250 260 270 280 290 300
 310 320 330 340 350 360 370 380 390 400
 410 420 430 440 450 460 470 480 490 500
 510 520 530 540 550 560 570 580 590 600
 610 620 630 640 650 660 670 680 690 700
 710 720 730 740 750 760 770 Last

Display Words Per Page: 250 500 1000

 
Africa (29)
Asia (27)
Europe (59)
North America (58)
Oceania (24)
South America (8)
 

List of Travel Books RSS Feeds

Africa Travel Books RSS Feed

Asia Travel Books RSS Feed

Europe Travel Books RSS Feed

North America Travel Books RSS Feed

Oceania Travel Books RSS Feed

South America Travel Books RSS Feed

Copyright © 2005 - 2022 Travel Books Online