1. Editorial

   • Louis V. Avioli

   EditorialNotes Pages: 1 - 1

2. Histomorphometric study of trabecular channels in normal iliac bone

   • Kozo Sato
   • Eikichi Wakamatsu
   • Paul D. Byers

   Clinical Investigations Pages: 2 - 7

3. The concentration of calcium and phosphorus in trabecular bone from the iliac crest

   • Karl J. Obrant
   • Rolf Odselius

   Clinical Investigations Pages: 8 - 10

4. Resorption of the mouse incisor after the application of cold to the periodontal attachment apparatus

   • Paul R. Wesselink
   • Wouter Beertsen
   • Vincent Everts

   Laboratory Investigations Pages: 11 - 21

5. Bone in the marmoset: A resemblance to vitamin D-dependent rickets, type II

   • Akira Yamaguchi
   • Yohko Kohno
   • Shusaku Yoshiki

   Laboratory Investigations Pages: 22 - 27

6. Comparison of the mechanisms of bone resorption induced by 1α,25-dihydroxyvitamin D₃ and lipopolysaccharides

   • Yoshiko Shiina
   • Akira Yamaguchi
   • Tatsuo Suda

   Laboratory Investigations Pages: 28 - 34

7. Avian medullary bone in organ culture: Effects of vitamin D metabolites on collagen synthesis

   • John R. Harrison
   • Nancy B. Clark

   Laboratory Investigations Pages: 35 - 43

8. Calcitonin gene-related peptide (CGRP) acts independently of calcitonin on cyclic AMP formation in clonal osteogenic sarcoma cells (UMR 106-01)

   • V. P. Michelangeli
   • D. M. Findlay
   • T. J. Martin

   Molecular and Cellular Biology Pages: 44 - 48

9. Formation of calcifying matrix by osteosarcoma cells in diffusion chambersin vivo

   • A. Shteyer
   • D. Gazit
   • G. Rodan

   Molecular and Cellular Biology Pages: 49 - 54

10. Announcements

    Announcement Pages: 55 - 55