1. On bilinearities between projective spaces

   • Mario Benedicty

   OriginalPaper Pages: 243 - 264

2. Perturbation theorems for periodic surfaces I—Definitions and main theorems

   • Stephen P. Diliberto

   OriginalPaper Pages: 265 - 299

3. Ausfüllung der Ebene durch Kreise

   • August Florian

   OriginalPaper Pages: 300 - 312

4. Imbeddings of some closed Riemann surfaces by canal surfaces

   • A. Garsia

   OriginalPaper Pages: 313 - 333

5. A thin clamped circular plate under uniform or uniformly varying load on an eccentric ellipse

   • W. A. Bassali

   OriginalPaper Pages: 334 - 346

6. Zum satz von Gauss-Bonnet in der dreidimensionalen metrischen Differentialgeometrie

   • Werner Bettingen

   OriginalPaper Pages: 347 - 359