1. Dr. Isadore Zipkin 1914–1973

   Obituary Pages: 1 - 1

2. Studies in the basic mineralizing system, CaO-P₂O₅-H₂O

   • H. Catherine W. Skinner

   Original Papers Pages: 3 - 14

3. An ultrastructural study of bone cells: The occurrence of microtubules, microfilaments and tight junctions

   • Jesse M. Weinger
   • Marijke E. Holtrop

   Original Papers Pages: 15 - 29

4. Bone growth in organ culture: Effects of phosphate and other nutrients on bone and cartilage

   • Patricia J. Bingham
   • Lawrence G. Raisz

   Original Papers Pages: 31 - 48

5. Microchemical studies of acid glycosaminoglycans from isolated chondrocytes in suspension

   • Sven-Erik Larsson
   • Klaus E. Kuettner

   Original Papers Pages: 49 - 58

6. The isolation of chondroitin 4-[³⁵S]sulphate from the molar teeth of young rats receiving sodium[³⁵S]sulphate

   • G. Embery

   Original Papers Pages: 59 - 65

7. Données histologiques et ultrastructurales sur le calcium thyroïdien

   • Micheline Martoja

   Original Papers Pages: 67 - 82

8. Crystalline changes in avian bone related to the reproductive cycle

   • Paul J. Tannenbaum
   • Harald Schraer
   • Aaron S. Posner

   Short Communication Pages: 83 - 86

9. Studies on dentinogenesis in the rat. Light, electron microscopic and histochemical studies on the interaction between lead pyrophosphate solutions and dentin-producing tissues

   • Åke Larsson
   • Herbert F. Helander

   Original Papers Pages: 87 - 104

10. Soluble and resistant proteoglycans in epiphyseal plate cartilage

    • Robert D. Campo

    Original Papers Pages: 105 - 119

11. Immunohistological localization of testosterone in the growing antler of the white-tailed deer (Odocoileus virginianus)

    • G. A. Bubenik
    • G. M. Brown
    • L. J. Grota

    Original Papers Pages: 121 - 130

12. A chemical study of apatites prepared by hydrolysis of amorphous calcium phosphates in carbonate-containing aqueous solutions

    • D. J. Greenfield
    • J. D. Termine
    • E. D. Eanes

    Original Papers Pages: 131 - 138

13. An electron microscopic study of myofilament calcium binding sites in native, EGTA-chelated and calcium reloaded glycerolated mammalian skeletal muscle

    • Walter L. Davis
    • J. L. Matthews
    • J. H. Martin

    Original Papers Pages: 139 - 152

14. Ultrastructure and lysosomal histochemistry ofia rat osteoclasts

    • B. H. Schofield
    • L. Stefan Levin
    • S. B. Doty

    Original Papers Pages: 153 - 160

15. Boen remodelingin vitro: The effects of two diphosphonates on osteoid synthesis and bone resorption in mouse calvaria

    • C. Minkin
    • L. Rabadjija
    • P. Goldhaber

    Original Papers Pages: 161 - 168

16. The effect of galactose on bone metabolism

    • J. L. Ferretti
    • M. E. Locatto
    • R. C. Puche

    Original Papers Pages: 169 - 175

17. Studies on matrix proteins of normal and lathyritic rat bone and dentine

    • David J. Carmichael
    • Carole M. Dodd
    • Charles F. Nawrot

    Original Papers Pages: 177 - 194

18. Fungal osteoclasia: a model of dead bone resorption

    • Valeria Marchiafava
    • E. Bonucci
    • A. Ascenzi

    Original Papers Pages: 195 - 210

19. Ultrastructure and growth of the sea urchin tooth

    • Ernst Kniprath

    Original Papers Pages: 211 - 228

20. Histochemical studies on calcified tissues

    • Mona M. Everett
    • William A. Miller

    Original Papers Pages: 229 - 244

21. An improved model system for the study of bone repair

    • Gary L. Klouda
    • Juan M. Navia

    Short Communications Pages: 245 - 249

22. Vitamin A deficiency stimulated phosphatase activity in epiphyseal chick cartilage

    • E. Havivi
    • R. Tal

    Short Communications Pages: 251 - 255

23. The ossification process of the developing antler in the white-tailed deer (Odocoileus virginianus)

    • W. J. Banks

    Original Papers Pages: 257 - 274

24. The lipids of matrix vesicles from bovine fetal epiphyseal cartilage

    • Nancy S. Peress
    • H. Clarke Anderson
    • Stanley W. Sajdera

    Original Papers Pages: 275 - 281

25. The effects of sodium fluoride on bone breaking strength

    • R. S. Riggins
    • F. Zeman
    • Donald Moon

    Original Papers Pages: 283 - 289

26. The inhibition of mouse bone collagenase by lysozyme

    • Seizaburo Sakamoto
    • Masako Sakamoto
    • Melvin J. Glimcher

    Original Papers Pages: 291 - 299

27. Simultaneous determination of blood flow in cortical bone, marrow, and muscle in canine hind leg by femoral artery catheterization

    • Edward C. McElfresh
    • Patrick J. Kelly

    Original Papers Pages: 301 - 307

28. Secretory territories and rate of matrix production of osteoblasts

    • Sheila J. Jones

    Original Papers Pages: 309 - 315

29. Additional evidence for the binding of calcium ions to elastin at neutral sites

    • R. B. Rucker
    • D. Ford
    • K. Tom

    Original Papers Pages: 317 - 325

30. Piezoelectricity in bone as a function of age

    • Andrew A. Marino
    • Robert O. Becker

    Short Communications Pages: 327 - 331

31. Histological preparation of bone to study ingrowth into implanted materials

    • L. G. Smith
    • M. T. Karagianes

    Short Communications Pages: 333 - 337

32. Effects of sera on bone resorption in tissue culture

    • E. Hausmann
    • R. Genco
    • R. Sacco

    Erratum Pages: 337 - 337