Geometry.
Brahe, Tycho or Tyge. 1546-1601. *#*E, 5082.47 Tychonis Brahe Triangulorum planorum et sphaeri-
corum prexis arithmetica. Qve maximus eorum, preesertim in astronomicis usus compendiose ex- plicetur. Nune primum edidit F. I. Studniéke. Pregae. Ex officina polygraphica Ios. Farsky. 1886. 44 pp. 4°. A photolithographed fac-simile of the original manuscript which is dated 1591.