1. Suggested fundamental concepts in skeletal physiology

   • H. M. Frost

   Editorial Pages: 1 - 4

2. Differential effects of glucocorticoids on cortical appendicular and cortical vertebral bone mineral content

   • R. F. J. M. Laan
   • W. C. A. M. Buijs
   • P. L. C. M. van Riel

   Clinical Investigation Pages: 5 - 9

3. Temporal variations in iliac trabecular bone formation in vertebral osteoporosis

   • Monique E. Arlot
   • Jeremy N. Bradbeer
   • Jonathan Reeve

   Laboratory Investigations Pages: 10 - 15

4. Lack of effect of ipriflavone on osteoclast motility and bone resorption inIn vitro andEx vivo studies

   • Moïse Azria
   • Chantal Behhar
   • Stephen Cooper

   Laboratory Investigations Pages: 16 - 20

5. Osteoclast recruitment in mice is stimulated by (3-amino-1-hydroxypropylidene)-1,1-bisphosphonate

   • Michael John Marshall
   • Ian Holt
   • Michael William John Davie

   Laboratory Investigations Pages: 21 - 25

6. Cortical bone mass, composition, and mechanical properties in female rats in relation to age, long-term ovariectomy, and estrogen substitution

   • Carl Christian Danielsen
   • Lis Mosekilde
   • Birgit Svenstrup

   Laboratory Investigations Pages: 26 - 33

7. Adsorption and modification of calcium salt crystal growth by anionic peptides and spermine

   • Erich Mueller
   • C. Steven Sikes

   Laboratory Investigations Pages: 34 - 41

8. Culture and differentiation of chondrocytes entrapped in alginate gels

   • M. Grandolfo
   • P. D'Andrea
   • F. Vittur

   Laboratory Investigations Pages: 42 - 48

9. Reduced mechanical competence of bone by ovariectomy and its preservation with 24R,25-dihydroxyvitamin D₃ administration in beagles

   • Motonori Yamaura
   • Toshitaka Nakamura
   • Katsumi Suzuki

   Laboratory Investigations Pages: 49 - 56

10. Increased bone growth by local prostaglandin E₂ in rats

    • Rong-Sen Yang
    • Tang-Kue Liu
    • Shoei-Yn Lin-Shiau

    Laboratory Investigations Pages: 57 - 61

11. Protein kinase C mediates flow-induced prostaglandin E₂ production in osteoblasts

    • Kathleen M. Reich
    • John A. Frangos

    Laboratory Investigations Pages: 62 - 66

12. Lack of association between free testosterone and bone density separate from age in elderly males

    • Paul J. Drinka
    • Jack Olson
    • Michael Wilson

    Comment Pages: 67 - 69

13. A combination of calcitonin and bisphosphonate for the emergency treatment of severe tumor-induced hypercalcemia

    • Kiersten Luce
    • Denis E. O'Donnell
    • A. Ross Morton

    Letter to the Editor Pages: 70 - 71

14. Announcements

    Announcement Pages: 72 - 72