The Geological Observer

according accumulations action amid amount animals appear become beds beneath blocks bottom breakers British cause changes character circumstances coast considerable considered containing continued coral covered currents deposits depth detritus direction distance distribution district Edition effected elevated evidence example existing exposed extended feet fissures force formed fragments geological given glaciers granite ground igneous important inferred influence Islands kind known lakes land lava less lime limestone localities lower manner marked mass matter mentioned miles mineral minor mode modifications mountain noticed observer obtained occur ocean original points portions present probably produced range reefs reference regards regions relative remains remarks removed represented respect rise river rocks sand sandstone seen shells shores side silicates similar situations sometimes species streams substances sufficient supposed surface temperature tide various vegetable veins volcanic whole