 As these soundings are believed to be the deepest ever submitted to microscopic examination, and were obtained at localities far remote from those previously noticed, they were studied very carefully, and the following are the facts ascertained : —...  The American Journal of Science - Pàgina 1751854Visualització completa - Sobre aquest llibre
 | 1856 - 430 pàgines
...The soundings examined were as follows : — Date. July 25, 1853 „ 18 „ AuS. 22 „ No date. 1)0. As these soundings are believed to be the deepest...carefully, and the following are the facts ascertained. 1. Isone of these soundings contain gravel, sand, or other recognisable inorganised mineral matter. 2.... | |
 | 1855 - 424 pàgines
...latitude, 42° 04' north. 1360 " " 44° 41' " 1580 " " 49° 56' 30" 1800 " " 47° 38' " 2000 " " 54° 17' " As these soundings are believed to be the deepest...of the calcareous shells of minute or microscopic Foraminifera, (Polythalamia, Ehr.,) among which the species of Globigerina greatly predominate in all... | |
 | 1855 - 476 pàgines
...45" Aug. 22 ,, 1800 ,, ,, 47338' ,, ,, 09° 08' ,, No date. 2000 ,, ,, 54° 17' ,, ,, 22° 33' ,, ,, As these soundings are believed to be the deepest...of the calcareous shells of minute, or microscopic Foraminiferae (Polythalamia, Ehr.), among which the species of Globigerina greatly predominate in all... | |
 | 1855 - 424 pàgines
...latitude, 42° 04' north. 1360 " " 44° 41' " 1580 " " 49° 56' 30" 1800 " " 47° 38' " 2000 " " 54° 17' " As these soundings are believed to be the deepest...of the calcareous shells of minute or microscopic Foraminifenc, (Polythalamia, Ehr.,) among which the species of Globigerina greatly predominate in all... | |
 | 1855 - 424 pàgines
...42° 04' north. 1360 " « 44° 41' " 1580 " " 49° 56' 30" 1800 " " 47° 38' " 2000 " " 54° 17' " As these soundings are believed to be the deepest...of the calcareous shells of minute or microscopic Foraminiferac, (Polythalamia, Ehr.,) among which the species of Globigerina greatly predominate in... | |
 | 1856 - 434 pàgines
...24°35- „ 18 „ 1580 49°56/ 13°14- Aug. 22 „ 1800 47°38- 09°08- No date. 2000 5417- 22°33- Do. As these soundings are believed to be the deepest...facts ascertained. 1. None of these soundings contain gravel, sand, or other recognisable inorganised mineral matter. 2. They all agree in being almost entirely... | |
 | Royal Society (Great Britain) - 1869 - 658 pàgines
...North, and long. 9° 8' and 29° 0' West, and at depths of from 1080 to 2000 fathoms. He stated that " none of these soundings contain a particle of gravel, sand, or other recognizable Mineral matter ; and that they are all made up of the shells of Globigerinee and Orbulinee, with a... | |
 | 1855 - 488 pàgines
...45" Aug. 22 ,, 1800 ,, ,, 47'38' ,, ,, 09°08' ,, No date. 2000 ,, ,, 54^17' ,, ,, 22° 33' „ ,, As these soundings are believed to be the deepest...of the calcareous shells of minute, or microscopic Foraminiferao (Polythalamia, Ehr.), among which the species of Globigerina greatly predominate in all... | |
 | 1855 - 486 pàgines
...30f 45" Aug. 22 ,, 1800 ,, ,, 47338' ,, ,, 09° 08' ,, No date. 2000 ,, ,, 54" 17' ,, ,, 22° 33' ,, As these soundings are believed to be the deepest...of the calcareous shells of minute, or microscopic Foraminiferae (Polythaldmia, Ehr.), among which the species of Globigerina greatly predominate in all... | |
 | 1854 - 956 pàgines
...13' 45" " Aug. 22, " 1800 " " 47° 38' " " 09° 08' " No date. 2000 « " 54° 17' " " 22° 33' " " " As these soundings are believed to be the deepest...of the calcareous shells of minute, or microscopic Foraminiferae (Polythalamia, Ehr.), among which the species of Globigerina greatly predominate in all... | |
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