1. Call it as we see it

   • Louis V. Avioli

   Editorial Pages: 1 - 1

2. Uptake of⁴⁷Ca into the forearm in normal subjects and in patients with osteomalacia, primary biliary cirrhosis, and hyperparathyroidism

   • R. C. Smart
   • C. D. Holdsworth

   Clinical Investigations Pages: 3 - 11

3. Anticonvulsant drug-induced osteomalacia: Alterations in mineral metabolism and response to vitamin D₃ administration

   • Theodore J. Hahn
   • Linda R. Halstead

   Clinical Investigations Pages: 13 - 18

4. Osteomalacia and altered magnesium metabolism in the X-linked hypophosphatemic mouse

   • Ralph A. Meyer Jr.
   • Jenifer Jowsey
   • Martha H. Meyer

   Laboratory Investigations Pages: 19 - 26

5. Mixed-image longitudimetry: A new method of length measurement in microscopy

   • Einar Sudmann

   Laboratory Investigations Pages: 27 - 32

6. Growth of embryonic chick tibiae in ovo and in vitro: A scanning electron microscope study

   • Richard M. Dillaman
   • Karl M. Wilbur
   • Miles A. Crenshaw

   Laboratory Investigations Pages: 33 - 40

7. Localization of phosphatidylserine in isolated chick epiphyseal cartilage matrix vesicles with trinitrobenzenesulfonate

   • Robert J. Majeska
   • Dennis L. Holwerda
   • Roy E. Wuthier

   Laboratory Investigations Pages: 41 - 46

8. Interaction of 24,25-Dihydroxyvitamin D₃ and parathyroid hormone on bone enzymes in vitro

   • M. Lieberherr
   • M. Garabédian
   • S. Balsan

   Laboratory Investigations Pages: 47 - 52

9. A model for the distribution of HAP crystallites in bone—an hypothesis

   • Sidney Lees

   Laboratory Investigations Pages: 53 - 56

10. An ultrastructural study of the role of calcification nodules in the mineralization of woven bone

    • Leon J. Martino
    • Vernon L. Yeager
    • John J. Taylor

    Laboratory Investigations Pages: 57 - 64

11. The amelogenin problem: A comparison of purified enamel matrix proteins

    • Alan G. Fincham

    Laboratory Investigations Pages: 65 - 73

12. Effect of proteoglycans on in vitro hydroxyapatite formation

    • N. C. Blumenthal
    • A. S. Posner
    • L. C. Rosenberg

    Laboratory Investigations Pages: 75 - 82

13. Effect of diphosphonates on hydroxyapatite formation induced by calcium-phospholipid-phosphate complexes

    • A. L. Boskey
    • M. R. Goldberg
    • A. S. Posner

    Laboratory Investigations Pages: 83 - 88

14. Announcements

    Announcement Pages: 89 - 90

15. Diphosphonates

    • H. Fleisch
    • R. Felix

    Editorial Pages: 91 - 94

16. Bone fluoride concentrations associated with fluoridated drinking water

    • J. Charen
    • D. R. Taves
    • F. M. Parkins

    Clinical Investigations Pages: 95 - 99

17. Distribution of the perilacunar hypomineralized areas in cortical bone from patients with familial hypophosphatemic (vitamin D-resistant) rickets

    • J. H. Choufoer
    • R. Steendijk

    Clinical Investigations Pages: 101 - 104

18. Age-related changes in the density and tensile strength of human femoral cortical bone

    • J. C. Wall
    • S. K. Chatterji
    • J. W. Jeffery

    Clinical Investigations Pages: 105 - 108

19. Noninvasive measures of bone bending rigidity in the monkey (M. nemestrina)

    • D. R. Young
    • W. H. Howard
    • C. R. Steele

    Laboratory Investigations Pages: 109 - 115

20. Comparative uptake of fluoride from sodium fluoride, ammonium fluoride, and barium fluoride in rat teeth when predominantly administered in the pre-eruptive stage of development

    • Jeffrey Alan Jech

    Laboratory Investigations Pages: 117 - 119

21. Effect of chronic low-level cadmium intoxication on the haversian remodeling system in dogs: A reversible phenomenon

    • C. Anderson
    • K. D. Danylchuk

    Laboratory Investigations Pages: 121 - 126

22. Effect of lithium on parathyroid hormone-induced calcium release from bone rudiments

    • Daniel T. Baran
    • James K. Burks
    • Louis V. Avioli

    Laboratory Investigations Pages: 127 - 128

23. Time-related changes in the ultrastructure of osteoclasts after injection of parathyroid hormone in young rats

    • Marijke E. Holtrop
    • Gregory J. King
    • Barry Reit

    Laboratory Investigations Pages: 129 - 135

24. Effects of parathyroid hormone on alkaline phosphatase activity and mineralization of cultured chick embryo tibiae

    • M. L. Thomas
    • W. K. Ramp

    Laboratory Investigations Pages: 137 - 142

25. Studies on the incongruent solubility of hydroxyapatite

    • H. W. Kaufman
    • I. Kleinberg

    Laboratory Investigations Pages: 143 - 151

26. Hydroxyl content of solution-precipitated calcium phosphates

    • J. L. Meyer

    Laboratory Investigations Pages: 153 - 160

27. Effect of 1-alpha-hydroxyvitamin D₃ on osteoporosis in rats induced by oophorectomy

    • J. U. Lindgren
    • T. S. Lindholm

    Laboratory Investigations Pages: 161 - 164

28. Effect of carbon dioxide and various oxygen tensions on the respiratory activity of bone

    • M. R. Korayem
    • P. Goldhaber

    Laboratory Investigations Pages: 165 - 169

29. Precipitation of calcium phosphates under conditions of double diffusion in collagen and gels of gelatin and agar

    • B. Pokrić
    • Z. Pučar

    Laboratory Investigations Pages: 171 - 176

30. Radioautographic visualization of³H-fucose incorporation into glycoprotein by osteoblasts and its deposition into bone matrix

    • Melvyn Weinstock

    Laboratory Investigations Pages: 177 - 185

31. Identification of phosphopeptides andγ-carboxyglutamic acid-containing peptides in epiphyseal growth plate cartilage

    • Melvin J. Glimcher
    • Dora Kossiva
    • Albert Roufosse

    Rapid Communication Pages: 187 - 191

32. Announcements

    Announcement Pages: 193 - 194

33. RIA: The only way to go?

    • William F. Neuman

    Editorial Pages: 195 - 197

34. Bone metabolism, parathyroid hormone, and calcitonin in paraplegia

    • A. Chantraine
    • G. Heynen
    • P. Franchimont

    Clinical Investigations Pages: 199 - 204

35. Intestinal calcium binding protein in uremia

    • Wallace A. Gleason Jr.
    • Nancy L. Grimme
    • David H. Alpers

    Clinical Investigations Pages: 205 - 210

36. Separation of odontoblast Ca²⁺-ATPase and alkaline phosphatase

    • G. Granström
    • M. Jontell
    • A. Linde

    Laboratory Investigations Pages: 211 - 217

37. Purification and partial characterization of two acid phosphatases from rat bone

    • T. R. Anderson
    • S. U. Toverud

    Laboratory Investigations Pages: 219 - 226

38. Effect of insulin on the incorporation of citrate and calcium into the bones of alloxan-diabetic rats

    • Padmakar K. Dixit
    • Allen M. K. Stern

    Laboratory Investigations Pages: 227 - 232

39. Bone maturation in the vitamin D, phosphate deficient rat and the response to acid loading

    • J. E. Russell
    • L. V. Avioli

    Laboratory Investigations Pages: 233 - 237

40. Factors affecting parathyroid hormone-induced hypophosphatemia and³²P specific activity in thyroparathyroidectomized rats

    • R. V. Talmage
    • C. J. VanderWiel
    • D. B. Raneri

    Laboratory Investigations Pages: 239 - 246

41. Cell lineage in fracture healing in chimeric bone grafts

    • David J. Simmons
    • Arnold J. Kahn

    Laboratory Investigations Pages: 247 - 253

42. Rodent peritoneal macrophages as bone resorbing cells

    • Steven L. Teitelbaum
    • Carleton C. Stewart
    • Arnold J. Kahn

    Laboratory Investigations Pages: 255 - 261

43. Isolation of specific bone cell types by free-flow electrophoresis

    • J. Edward Puzas
    • Agnes Vignery
    • Howard Rasmussen

    Laboratory Investigations Pages: 263 - 268

44. Chondroitinase-resistant sulfated glycosaminoglycans synthesized by cartilages of chick embryos and of newborn chickens and rats

    • M. Sobue
    • J. Takeuchi

    Laboratory Investigations Pages: 269 - 273

45. Changes in proline synthetic and degradative enzymes during matrix-induced cartilage and bone formation

    • R. J. Smith
    • A. H. Reddi
    • J. M. Phang

    Laboratory Investigations Pages: 275 - 279

46. Phosphopeptides and γ-carboxyglutamic acid-containing peptides in calcified turkey tendon: Their absence in uncalcified tendon

    • Melvin J. Glimcher
    • Diane Brickley-Parsons
    • Dora Kossiva

    Rapid Communications Pages: 281 - 284

47. Announcements

    Announcement Pages: 285 - 286