Vergleichende Untersuchungen zur Biokristallo-graphie tierischer Harnsteine

Abstract

A variety of urinary calculi occur in domestic and wild animals; the chemical names and formulae and the mineralogical designation of these are tabulated. Since the majority of urinary calculi in animals consist of crystalline substances, they lend themselves to analysis by crystallographic methods, particularly x-ray diffraction. Investigation of over 1000 urinary concrements from about 50 species of animals has shown that only about 22 different crystalline substances are involved in their formation. Most calculi in animals contain one or another salt of calcium. The relationship between the mineral crystalline substances and the organic material in calculi is discussed with respect to the theories of calculus formation.