powder
being mixed with water, three glasses of the solution were given. He
adds, however : ' ' I must say that as far as I have seen they have no
effect, but they are efficient in the case of renal calculi."67
No fossils were more prized than the so-called glosso-petrœ or "tongue-stones." Although these were really the fossilized or petrified teeth of a species of shark, Pliny and
ω
Plinii, " H'istoria Naturalis," lib. xxxvii, cap. 68. " Ibid., lib.
xxxvi, cap. 35. See also Dioscorides V, 155 ; AEtius II, 19. Claudii
Galeni, " Opera Omnia," ed. Kuhn, Lipsia?, 1826, vol. xii, p. 199. De
eimplic. med., lib. vii, cap. 2.
