 | Henry Walter Bates - Amazon River - 1863 - 396 pages
...height. We soon ascertained that these were the work of the Saubas, being the outworks, or domes, which overlie and protect the entrances to their vast subterranean...converged, at the depth of about two feet, to one broad elaborately-worked gallery or mine, which was four or five inches in diameter. This habit in the Saiiba... | |
 | Thomas Bulfinch - Literary Criticism - 1866 - 494 pages
...generally closed: only now and then, when some particular work is going on., are the galleries opened. In the larger hillocks, it would require a great amount...succeeded in removing portions of the dome in smaller hillock^, and then I found that the minor entrances converged, at the depth of about two feet, to one... | |
 | Henry Walter Bates - Brazil - 1873 - 416 pages
...particular work is going on, are the galleries opened. The entrances are small and numerous ; in the large hillocks it would require a great amount of excavation...converged, at the depth of about two feet, to one broad elaborately-worked gallery or mine, which was four or five inches in diameter. This habit in the Saiiba... | |
 | Henry Walter Bates - Brazil - 1880 - 176 pages
...particular work is going on, are the galleries opentd. The entrances are small and numerous ; in the large hillocks it would require a great amount of excavation...converged, at the depth of about two feet, to one broad elaboratelyworked gallery or mine, which was four or five inches in diameter. This habit in the Saüba... | |
 | Henry Walter Bates - Amazon River Valley - 1880 - 168 pages
...particular work is going on, are the galleries opened. The entrances are small and numerous ; in the large hillocks it would require a great amount of excavation...hillocks, and then I found that the minor entrances COE verged, at the depth of about two feet, to one broad elaboratelyworked gallery or mine, which was... | |
 | Henry Walter Bates - Brazil - 1880 - 162 pages
...particular work is going on, are the galleries opened. The entrances aie small and numerous ; in the large hillocks it would require a great amount of excavation to get at the main galleries ; but Í succeeded in removing portions of the domo in smaller hillocks, anil then I found that the miuor... | |
 | William Farren White - Ants - 1883 - 310 pages
...Saiibas, being the outworks or domes, which overlie and protect the entrances to their vast subterraneous galleries. On close examination I found the earth...converged at the depth of about two feet, to one broad and elaborately worked gallery or mine, which was four or five inches in diameter. This habit in the... | |
 | Geological Society of America - Geology - 1910 - 962 pages
...regarding the snubas:*1 "The entrances are small and numerous; In the large hillocks It would require n great amount of excavation to get at the main galleries: but I succeeded iu removing portions of the dome in smaller hillocks, and then I found that the minor entrances converged,... | |
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The difference in colour from the superficial soil of the vicinity is owing to their being formed of the undersoil, brought up from a considerable depth. It is very rarely that the ants are seen at work on these mounds ; the entrances seem to be generally... 