References of "1905"
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See detailL'eucharistie et la civilisation
Kurth, Godefroid ULg

in La revue apologétique (1905), 3(7e année), 175-162

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See detailEncore Renier de Huy
Kurth, Godefroid ULg

in Bulletins de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique (1905), 4

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See detailPréface
Kurth, Godefroid ULg

in Lefort, Albert (Ed.) Histoire du département des forêts (le Duché de Luxembourg de 1785 à 1814) : d'après les archives du gouvernement grand-ducal et des documents français inédits (1905)

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See detailIntroduction historique
Kurth, Godefroid ULg

in Exposition universelle et internationale de Liège (Ed.) Exposition de l'art ancien au pays de Liège : catalogue général (1905)

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See detailSur la limite de visibilité de la fluorescence et sur la limite supérieure du poids absolu des atomes
Spring, Walthère ULg

in Recueil des Travaux Chimiques des Pays-Bas et de la Belgique (1905), XXIV

Spring, W. Recueil des Travaux Chimiques des Pays-Bas (1905), 24, 297-304; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Compare de Bruyn and ... [more ▼]

Spring, W. Recueil des Travaux Chimiques des Pays-Bas (1905), 24, 297-304; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Compare de Bruyn and Wolff, Abstr., 1904, ii, 470. The fluorescence of a solution of fluorescein or of eosin in optically transparent water (Abstr., 1899, ii, 537) becomes invisible in daylight when the amount of the fluorescent substance present falls to 0.000,000,01 gram per c.c., and is just visible at the apex of a powerful beam of electric light when the concentration is 0.000,000,000,000,001 gram per c.c. It is found that the area of liquid illuminated by the apex of the cone of light must be at least 1 sq. mm. in order to render the fluorescence visible, and consequently, assuming that 1 cubic millimetre of the liquid contains at least one molecule of fluorescein (mol. wt. 408) for example, then the weight of an atom of hydrogen would be 2.5 × 10-21 grams. This value, which represents only the higher limit among possible values, is much smaller than those arrived at from other considerations by Clerk Maxwell, Kelvin, de Heen, Annaheim, and others. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved. [less ▲]

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See detailNotger de Liège et la civilisation au Xe siècle
Kurth, Godefroid ULg

Book published by A. Picard, O. Schepens, L. Demarteau (1905)

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See detailLes origines de la commune de Liège
Kurth, Godefroid ULg

in Bulletin de l'Institut Archéologique Liégeois (1905), 35

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See detailSur la limite de visibilité de la fluorescence et sur la limite supérieure du poids absolu des atomes d'hydrogène
Spring, Walthère ULg

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1905), (5), 201-211

Spring, W. Bulletin de la Classe des Sciences, Academie Royale de Belgique (1905), 201-11; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). A ... [more ▼]

Spring, W. Bulletin de la Classe des Sciences, Academie Royale de Belgique (1905), 201-11; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). A solution of fluorescein in optically pure water was subjected to the action of a powerful beam of electric light, and the limit of dilution was observed at which a visible green fluorescence was produced. Assuming under these conditions that one cubic millimetre of the solution contained one molecule of fluorescein (C20H10O5K2 = 408), the value 2.5 × 10-21 grams is obtained for the superior limit of the weight of the atom of hydrogen, which is one-twenty-thousand-millionth part of the value 5 × 10-11 calculated by Annaheim (this Journal, 1877, i, 31), but is about seven thousand times as great as the value 3.45 × 10-25 calculated from the kinetic theory of gases. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved [less ▲]

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See detailLa lumière comme détective de la constitution des corps
Spring, Walthère ULg

in Société chimique de Belgique (Ed.) Walthère Spring : Oeuvres complètes (1905)

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See detailL'Etat belge et l'enseignement
Kurth, Godefroid ULg

Book published by A. Dewit (1905)

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See detailNotice sur Réginard
Kurth, Godefroid ULg

in Académie royale des sciences, des lettres et des beaux-arts de Belgique (Ed.) Biographie nationale, t. XVIII (1905)

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See detailNotice sur Raoul de Léau
Kurth, Godefroid ULg

in Académie royale des sciences, des lettres et des beaux-arts de Belgique (Ed.) Biographie nationale, t. XVIII (1905)

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See detailNotice sur Rathier
Kurth, Godefroid ULg

in Académie royale des sciences, des lettres et des beaux-arts de Belgique (Ed.) Biographie nationale, t. XVIII (1905)

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See detailNotice sur les tomes VII et VIII du recueil de M. W. Bang : Materialien zur Kunde des älteren englischen Dramas
Kurth, Godefroid ULg

in Bulletin de la Classe des Lettres et des Sciences Morales et Politiques (1905)

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See detailSur l'origine des nuances vertes des eaux de la nature et sur l'incompatibilité des composés calciques, ferriques et humiques en leur milieu
Spring, Walthère ULg

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1905), (7), 300-309

Spring, W. Bull. de l'Acad. royale de Belg. (1905), 1905, 300 to 310; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). After Baron V. AUFSESS (Die ... [more ▼]

Spring, W. Bull. de l'Acad. royale de Belg. (1905), 1905, 300 to 310; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). After Baron V. AUFSESS (Die Farbe der Seen. Inaug.-Diss. Muenchen 1903) the refraction of the light does not have influence on the change of the blue color water, mainly also because one can obtain green water by dissolving lime compounds/connections, yellow or brown water by solve ones of humus substances in pure water. The going by experiments of the authors, which are down partly in detail described, led however to the subsequent results: the lime compounds/connections natural water do not have inherent color and are not a cause of the much-observed green coloring in with examination appearing even clear lime water; the green, after elimination of the dyes residual coloring contained in the water is the result of the refraction of the light through invisible portion cups, which the water still includes, and whose presence can be done by an intensive light beam. The lime compounds/connections affect strongly fell in the water contained the ferric compounds/connections and with these on the humus substances, which the latter natural color water strongly change. Lime salts protect therefore the blue color water. In case of the not-blue, lime-containing, natural water an equilibrium between the cleaning effect of their lime compounds/connections results and steady influxes of the humus and ferric compounds/connections, which let disappear its brown coloring lower for itself the blue color water. The blue, more or less greenish color of the purest water give information over the point, where the equilibrium between the antagonists is fixed. Purely blue water (6 m coating thickness) becomes green by dissolving lime from Icelandic double spar; when introducing CO2 a clear, somewhat less green solution of acid calcium carbonate forms; also gypsum colors such water green. During the passage of radiation of electrical light these solutions appear, particularly the CaH2(CO3)2-containing, optically clouds, it carefully to dry was evaporated, the residue contained partially organic substance, partially SiO2 or silicates (from the glass of the container), which were contained in the solution therefore in the colloidal condition. After filtering the other Ca-containing solutions by animal charcoal these showed the same blue color as pure water. When regarding by a pipe of 6 m length appears pure water with 1/1 000 000 part ferric hydroxide brown, with 1/2 000 000 green, with 1/5 000 000 unmodified blue. With humus substances the blue color is already changed by more than 1/40 000 000 part. Ferric salts color brownish; they are particularly reduced by humus substances, in the light, sometimes partially to ferrous compounds/connections, whose color is not possible, and which with the humus substances insoluble, failing compounds to be received. To a liter of clear solution with 1/3 000 000 if part colloidal Fe(OH) 3 (to dissolve of FeCl3 in H2O) is added a same volume acid calcium carbonate or CaSO4-Solution, then a flocculation, tags begins is because of the container soil a brown, ocher-colored dirt, the water is perfectly clear, appears green and leaves a residue of CaCO3 or CaSO4 without trace iron after few instants; the sediment contains 85-90% Fe(OH)3, CaCO3 or CaSO4. Also with insoluble CaCO3 begins the flocculation of the ferric compounds/connections immediately; similarly soluble salts work; with sodium chloride (sea water) a trace remains iron in solution. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved. [less ▲]

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See detailLes destinées de la psychologie
Merten, Oscar ULg

Speech (1905)

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See detailAnémie aigue du cœur de chien sans fibrillation. Fibrillation en l’absence de toute action vasomotrice
Fredericq, Léon ULg

in Archives Internationales de Physiologie (1905), II

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See detailNote sur la concentration moléculaire des tissus solides de quelques animaux d’eau douce
Fredericq, Léon ULg

in Archives Internationales de Physiologie (1905), II

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See detailInfluence de la température sur la distribution géographique de Colias Palaeno
Fredericq, Léon ULg

in Archives Internationales de Physiologie (1905), II

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