Lezioni di geometria metrico-proiettiva.

Available on demand as hard copy or computer file from Cornell University Library.

Wahrscheinlichkeitsrechnung und Kollektivmasslehre,

Anhang: Tafel der [Phi]-Funktionen: 18 p. at end.

Introduction à l'étude de la théorie des nombres et de l'algèbre supérieure

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Grundzüge der antiken und modernen Algebra der litteralen Gleichungen,

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Introduction à la théorie des nombres algébriques.

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Sulla geometria analitica delle linee piane.

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Introduction à la théorie des nombres transcendants, et des propriétés arithmétiques des fonctions.

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Een aanhangsel tot de tafels van onbepaalde integralen.

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Recreations in science and natural philosophy: Dr. Hutton's translation of Montucla's edition of Ozanam.

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Grundlagen der Differentialgeometrie.

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Das Problem der magischen Systeme.

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Vorlesungen über mathematische näherungsmethoden.

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A key to the exercises in the first six books of Casey's Elements of Euclid.

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Analyse infinitésimale des courbes dans l'espace,

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Introduction à la théorie des fonctions d'une variable.

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