Scottish geographical magazine . hington, D. C. ^TATS UNIS DAMERIQUE.—Feuillc; Sud-Ouest. Dresse par V. Huot, Echelle,1 :5,000,(100. Carte No. 75. Atlas Universel de Geographie, commence parM. Vivien de Saint-Martin et continue par Fr. Schrader, Paris. Price 2francs. Librairie Hachette et Cie., Paris. AUSTRALASIA. QUEENSLAND.—Geological Sketch Map showing mineral localities. Prejmredunder the supervision of B. Dunstan, , Acting Government Geologist,and compiled by H. W. Fox. Scale 1 :2,500,000 or about 40 miles to aninch. Third edition, 1908. Geological Survey of Queensland, Brisbane. QU
Scottish geographical magazine . hington, D. C. ^TATS UNIS DAMERIQUE.—Feuillc; Sud-Ouest. Dresse par V. Huot, Echelle,1 :5,000,(100. Carte No. 75. Atlas Universel de Geographie, commence parM. Vivien de Saint-Martin et continue par Fr. Schrader, Paris. Price 2francs. Librairie Hachette et Cie., Paris. AUSTRALASIA. QUEENSLAND.—Geological Sketch Map showing mineral localities. Prejmredunder the supervision of B. Dunstan, , Acting Government Geologist,and compiled by H. W. Fox. Scale 1 :2,500,000 or about 40 miles to aninch. Third edition, 1908. Geological Survey of Queensland, Brisbane. QUEENSLAND.—Showing principal Mining Centres and Railways, by W. H. Green-field. Scale 1 : 6,000,000 or about 95 miles to an inch. 1908. Geological Survey of Queensland, Brisbane. QUEENSLAND.—Sketch Map of the Etheridge Goldfield. Prepared at the Geo-logical Survey Office, Department of Mines, by W. H. Greenfield. Scale1 : 380,160 or G miles to an inch. 1908. Geological Survey of Queensland, Brisbane. IIRTH EAST GREENLANi:. THE SCOTTISH GEOGRAPHICAL MAGAZINE. C Prof. -Iamks Geikik, (7/7/// Maj>.^.) \ lliKATlONS of the earths surface are of Aarious origin. Solne are due tohuman agency : for example, blasting operations in mines and quarries,the tiring of 1)ig guns, and even the passage of heavy horse-wagons,motor-cars, and railway trains cause the ground to tremlile. But tremorsof this light kind are felt only in the immediate neighl)ourhood of thesource of disturbance. Similar iniimportant vil)rations ai-e due to naturalagents operating at the surface—those agents, namely, which bring aboutextensive avalanches, rock-falls, landslips, and the collapse of caves and\indergroiuid water-chawnels. Tremors of such superficial origin, how-ever, can hardly be dignified l:)y the name of earthquakes. True earth-quakes are subterranean concussions, and vary in intensity from barelvperceptible tremblings up to violent shocks that cause widespread d
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