Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 62American Philosophical Society, 1923 |
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acid alcohol algal AMER amphibole animals apatite Badlands band Big Badlands bile Black Hills calcite caliche caliche nodules cent chalcedony changes chondrodite clays climatic contact metamorphism containers Corral Draw crystals deposition dikes diopside diorite effects erosion evidence feet felspar formation formed gall bladder Geol geological germ cells granite green hornblende inches Indian Creek Indian summer Interior intrusive later Leptauchenia beds lime limestone lines lower LXII magmatic magnesia material meionite mica microcline microperthite miles minerals molecule Nodular normal northeast occur Oreodon beds origin Pasteur pegmatite pegmatite dikes period phlogopite plain Plate probably PROC Protoceras Protoceras channels pyroxene quartz Red layer region rock rotation sandstone scapolite sediments shows silicates silts solution spinel stone streams surface syenite temperature thickness tion tissues titanite Titanotherium beds tourmaline treated tremolite upper valley volcanic weather White Ash layer White River zone
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Сторінка 173 - Feb., 1914. 18. Harker, A. The Natural History of Igneous Rocks. 20. Kemp, JF The Role of the Igneous Rocks in the Formation of Veins. Transactions of the American Institute of Mining Engineers, Feb., 1901. 21. Leith. CK. and Mead,
Сторінка 234 - 2 miles east of Morden) the reddish amygdaloid in the low cliffs along the shore is penetrated by vertical cylindrical structures from one to four and a half inches in diameter and at times two yards in length. The material of these cylinders is characterized by the presence of white amygdules of zeolites from
Сторінка 234 - inch in diameter which are more abundant near the margin of the cylinders than at the centre, while the main mass of the basalt is not marked by any prominent amygdaloidal structure. On a flat surface of basalt below high tide . . . the writers observed within a radius of four feet 25 tubes, 18 of them from
Сторінка 174 - Academy of Sci., Vol. XV., Sig. 17, Sept. 25, 1896. 29. Smyth. CH. Jr. Genesis of the Zinc Ores of the Edwards District, St. Lawrence Co..
Сторінка 278 - is largely beside the point. It would be valid against the old theory of pangenesis advanced by Darwin, which looked upon the new individual as an assemblage of samples collected from the tissues of the parent, but nobody advocates any such theory today.
Сторінка 278 - is widely regarded as convincing evidence against the theory of possible somatic influence on inheritance. The inference is, I take it, that once such recessives become obscured, their factors should disappear if the body can influence the germ. But
Сторінка 131 - small amount of magnesia. The carbonates amount to about 95 per cent, of the whole mass, of which nearly 90 per cent, is calcium carbonate. Rarely the magnesia assumes sufficient importance to characterize the rock as a dolomite." Analyses published in his report give the percentages of magnesian carbonate as 6.40 per cent., 7.50 per cent., 6.85 per cent., and calcium carbonate as 87.09
Сторінка 174 - W. Mineral Deposits. (Particularly Chapts. XXVII. and XXVIII.) 23. Martin. JC The Pre-Cambrian Rocks of the Canton Quadrangle. New York State Museum Bull. No. 185, Albany, 1916. 24. Miller,
Сторінка 278 - idea that the constituents of the germ might be influenced by direct environmental conditions or by something transported to the gonad in the circulating fluids of the