...This has evidently been brought to the surface by volcanic action at a later period than the coal formation... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...Nassau says it is always said tobe north of Gaboon; but so far no white man has any knowledge of anactive volcano there, although the district is of volcanic origin...
Mary H. Kingsley 「Travels in West Africa」
...Out of it, barelytwenty miles away, rose Fernando Po to its 10,190 feet with that majesticgrace peculiar to a volcanic island...
Mary H. Kingsley 「Travels in West Africa」
...The last reported eruption was in 1852, when signs of volcanic activitywere observed by a captain who was passing at sea...
Mary H. Kingsley 「Travels in West Africa」
...Herr Liebert has no confidence in the mountain whatsoever, and announceshis intention of leaving Buea with the army on the first symptom ofrenewed volcanic activity...
Mary H. Kingsley 「Travels in West Africa」
...A high volcanic peak, hills covered with wood, and spots of ground reminding us of the lawns or pasture-lands of our own country...
Horatio Bridge 「Journal of an African Cruiser」
...—Guerrero thence eastward into Morelos and west central Pueblaalong the southern edge of the Transverse Volcanic Biotic Province (Goldmanand Moore, 1945:349), south into Oaxaca, see ...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...The soil in this cañon was not deep and consistedof a rocky, marly mixture, pale red in color, evidently produced byweathering of the reddish volcanic rocks bordering the cañon...
Rollin H. Baker 「Two New Moles (Genus Scalopus) from Mexico and Texas」
...Others of our party visited Djokjakarta and theBuddhist Temples of Boro-Boder in Central Java and themountain resort of Tosari in the volcanic region ofEastern Java...
A. F. R. Wollaston 「Pygmies and Papuans」
...The origin of the sæcular games seems to be this: Inthe early days of Rome the northwest section of the CampusMartius, bordering on the Tiber, was conspicuous for tracesof volcanic activity...
Rodolfo Lanciani 「Pagan and Christian Rome」
... That is to say, a flinty volcanic ash...
John Ruskin 「The Poetry of Architecture」
...Terra Puzzoli, a volcanic production, is a species of light red, as isthe Carnagione of the Italians...
George Field 「Field's Chromatography」
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