Philosophical Magazine, Volume 5Taylor & Francis., 1829 - Physics |
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Page 167
... occur veins of granite , greenstone , and steatite . The vein of compact greenstone appears at the cliffs near ( a ) fig . 9 , and a section of it is represented by fig . 10 . This vein is five feet thick , runs 30 degrees west from ...
... occur veins of granite , greenstone , and steatite . The vein of compact greenstone appears at the cliffs near ( a ) fig . 9 , and a section of it is represented by fig . 10 . This vein is five feet thick , runs 30 degrees west from ...
Page 168
... occurs near ( h ) ; at the bottom it is six feet wide , higher up less wide , so that its termi- nation is very ... occur only in a small proportion in it , but schorl is more abundant . This rock is decomposed near to the surface ...
... occurs near ( h ) ; at the bottom it is six feet wide , higher up less wide , so that its termi- nation is very ... occur only in a small proportion in it , but schorl is more abundant . This rock is decomposed near to the surface ...
Page 242
... occur at Cligga Point ; even their influence on the rock through which they pass , is the same . The walls of these veins at Carclaze are very hard , quartzose , of a grayish hue , and not at all decomposed . These tin lodes run in ...
... occur at Cligga Point ; even their influence on the rock through which they pass , is the same . The walls of these veins at Carclaze are very hard , quartzose , of a grayish hue , and not at all decomposed . These tin lodes run in ...
Contents
JANUARY | 1 |
Capt B Halls Letter inclosing a Communication from Peter | 15 |
Mr Ivory on the Method of deducing the Difference of Lon | 24 |
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abdomen acute Amplitude de l'arc angle Antennæ apex appears Barcelone basal joint Bear's Head bipectinated Brit characters ciliated Cloudy colour contains crystals Curtis cylindric deflexed degrees densely deux distance elongate Ernst étoile experiments fait fascicles of hair feet female femora gallic acid genus gneiss grains Grande Ourse granite granite vein Haust head small heat Hübn Icon Illust inches killas Lake Lake Ontario Larva Larvæ latitude Latr legs length Linn Lithosia males manganese manganite maxillæ mean Méchain méridien miles minute Mont-Jouy muriatic nearly observations obtuse occur Ochs Ochsenheimer Ourse oxide oxygen Palpi pectinations Penhill peroxide pilose plane porrected posterior potash precipitate pupa quantity quartz rain robust rock scales schorl Settronside short side slender species steatite Steph stout strata sulphuric sulphuric acid surface tannin temperature terminal thorax tibiæ tion triarticulate tube tuft Whernside wings