Thayer Expedition: Scientific Results of a Journey in Brazil

Forsideomslag
Fields, Osgood, 1870 - 620 sider
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Side 240 - Analogy' there are generally subjoined two dissertations: one on Personal Identity, and one on The Nature of Virtue. Adam, the drama, is a work of the twelfth century by an unknown author. It is written in French, with the exception of the responses and canticles, which are in Latin ; and it derives its chief importance from the fact that it is the oldest drama in the language. It gives the history of the fall of Adam and the murder of Abel, followed by a procession of all the prophets who foretold...
Side 493 - Agassiz ; but the facts have seemed to need a different interpretation from that which be has given them. My conclusions, after all, do not affect his theory of the former existence of glaciers under the tropics, down to the present level of the sea, — a theory which...
Side 385 - ... peculiarities possessed by some of them, and which recalled Jurassic forms. Professor Hyatt kindly consented to study the specimens critically, and I am glad to be able to present the following report upon them, which he has prepared for this work. I am especially glad to have the opinion of this naturalist on the Ceratites and Ammonites, because he has made such exceedingly careful studies of these groups. Report on the Cretaceous Fossils from Maro'im, Province of Sergipe, Brazil, in the Collection...
Side 524 - Stem lepidendroid, scars small, obovate, without any markings ; base of the petiole permanently attached to the stem ; leaf slender, linear ; venation parallel. Fruit a cone (?) the scales of which support numerous roundish sporangia.
Side 199 - ... fifty or more feet, like towers, and sometimes attain the level of low water, forming what are called on the Brazilian coast chapeiroes (signifying big hats). At the top these are usually very irregular, and sometimes spread out like mushrooms, or, as the fishermen say, like umbrellas. Some of these cha/peiroes are only a few feet in diameter. A few miles to the eastward of the Abrolhos is an area, with a length of nine to ten and in some places a breadth of four miles, over which these structures...
Side 203 - Notice of the Crustacea collected by Professor CF Hartt on the Coast of Brazil in 1867, together with a List of the described Species of Brazilian Podophthalmia.
Side 535 - It may be specular iron, for oligistic matter is found in small portions, and was stamped for free gold. " Much of the jacutinga is foliated, and forms under pressure spheroidal oblong crystals never found perfect. It shows great differences of consistency ; some of it is hard and compact as hematite, and this must be stamped like quartz.
Side 511 - ... of St. Paul's, owing to its elevation (about 50 feet above the plain), and the water which almost surrounds it, are in general remarkably clean ; the material with which they are paved, is lamillary grit-stone, cemented by oxide of iron, and containing large pebbles of rounded quartz, approximating to the conglomerate. This pavement is an alluvial formation containing gold, many particles of which metal are found in the chinks and hollows after heavy rains, and at such seasons are diligently...
Side 551 - Clay-slates with auriferous veius occur in other parts of Brazil besides Minas, as, for instance, in Goyaz, and in the vicinity of Cuiaba in Matto Grosso. These rocks are everywhere so metamorphosed, that all trace of fossils has been completely obliterated.* * The Silurian rocks of the Andes of Bolivia and Peru have...
Side 195 - Brazilian milleporse by the peculiar form of its branches, which Professor Verrill has described as " erect, angular, or flattened, or forming broad, convoluted, and folded rough plates, with acute edges and summits ; the sides covered with sharp, irregular, angular, crest-shaped, and conical prominences varying much in size and elevation, often becoming continuous ridges, usually standing at right angles to the sides of the branches." Professor Verrill suggests that this may, after all, be only...

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