| 1849 - 488 pages
...which is a loose volcanic sand, containing magnetic iron, crystals of hornblende and augite, <fcc., the detritus of augitic rocks and earthy tuff. This...found in the sand : there are no vestiges of shells or mollusca of any kind ; but there is in the collection a small Area imbedded in a sandy clay, and... | |
| 1849 - 1118 pages
...the ar- . ticulating surfaces as smooth and uninjured as if prepared by the anatomist ; egg-shells, mandibles, even the bony rings of the air-tubes are...found in the sand : there are no vestiges of shells or mollusca of any kind ; but there is in the collection a small Area imbedded in a sandy clay, and... | |
| Gideon Algernon Mantell - 1851 - 524 pages
...iron, crystals of hornblende and augite, ,fec, the detritus of volcanic rocks and earthy tuff. The sand has filled all the cavities and cancelli that...consolidated or aggregated together ; it is easily removed by a soft brush. The following extract from my son's letter, dated Wellington, June, 1847, details... | |
| 1849 - 486 pages
...which is a loose volcanic sand, containing magnetic iron, crystals of hornblende and augite, <fcc., the detritus of augitic rocks and earthy tuff. This...found in the sand : there are no vestiges of shells or mollusca of any kind ; but there is in the collection a small Area imbedded in a sandy clay, and... | |
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