Reports of Explorations and Surveys to Ascertain the Most Practicable and Economical Route for a Railroad from the Mississipi River to the Pacific Ocean Volume 8

Reports of Explorations and Surveys to Ascertain the Most Practicable and Economical Route for a Railroad from the Mississipi River to the Pacific Ocean Volume 8

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1857 edition. Excerpt: ...The nasal bones preserve somewhat the same proportions, reaching, possibly, not quite so far back, but instead of occupying exactly one-third of the total length of the upper Oiltllue of the skull, take up more nearly two-fifths of the same length. The malar bone is much less massive, as for five-sevenths of its total axial length it is quite narr0W, the "PW" "ind lower edges nearly parallel beyond the temporal bone, and curvin g gently llpwflfdi; "flier winch it widens, with the sides again nearly parallel, and bending very rapidly upwards. Anteriorl.Ycents with the lachryinal, but the upper maxillary constitutes altogether the anterior 1"'t _f the Zygoma, and foi-ms the anterior wall of the orbit. The zygoma itself is situated much higher up on the side of the head than in Castor; its lower edge being but little more than half-wfl-_Y between the top of the head and the grinding surfaces of the molars, while in the beaver It 18 much nearer the latter. The lower edge of the anterior root of the zygoma being 'l"""" 5 much higher up, the ante-orbital foramen ascends also, being midway on the side of the head, instead of much nearer the lower surface ', this foramen appears no larger rpP0f51"allY than in Castor, and is similarly placed anterior to the root of the zygoma; it ls, however' "mm visible from the side, not being concealed by a bony plate. _ b _n the ante. The lachrymal bone is very small, and separates the frontal and ma.xillarY 'mes L rior angle of the orbit; as already stated, the nialar does not extend as far as this bone. The ante-orbital tubercle of the frontal, just posterior to the lachryrnal, seems wanting in Castoroides, and the greatesshow more

Product details

  • Paperback | 332 pages
  • 189 x 246 x 18mm | 594g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236941527
  • 9781236941527