1. An editorial announcement

   • R. W. Cahn

   Announcement Pages: 459 - 459

2. Applications of electron microscopy to minerals

   • P. E. Champness
   • G. W. Lorimer
   • R. W. Cahn

   Report Pages: 460 - 460

3. An electron-microscopic and X-ray study of complex exsolution textures in a cryptoperthitic alkali feldspar

   • C. Willaime
   • W. L. Brown
   • M. Gandais

   Papers Pages: 461 - 466

4. Precipitation (exsolution) in an orthopyroxene

   • P. E. Champness
   • G. W. Lorimer

   Papers Pages: 467 - 474

5. Planar defects in fibrous amphiboles

   • J. E. Chisholm

   Papers Pages: 475 - 483

6. Some applications of transmission electron microscopy to space physics

   • J. Borg

   Papers Pages: 484 - 489

7. The dislocation structures responsible for the optical effects in some naturally-deformed quartzes

   • S. White

   Papers Pages: 490 - 499

8. The microstructure of experimentally deformed limestones

   • D. J. Barber
   • H. R. Wenk

   Papers Pages: 500 - 508

9. High voltage electron microscopy of quartz particles from post-glacial clay soils

   • C. Hammond
   • C. F. Moon
   • I. J. Smalley

   Papers Pages: 509 - 513

10. Rubber-toughening of plastics

    • C. B. Bucknall
    • D. Clayton
    • Wendy Keast

    Papers Pages: 514 - 524

11. A study of the solid-state polymerization of trithiane

    • V. M. Nadkarni
    • J. M. Schultz

    Papers Pages: 525 - 538

12. The sintering of non-stoichiometric UO₂ under non-isothermal conditions

    • D. Uskoković
    • L. J. Djuričić
    • M. M. Ristić

    Papers Pages: 539 - 544

13. Semiconducting and transport properties of mono- and polycrystalline nickel oxide

    • Jerzy Dereń
    • Stanisław Mrowec

    Papers Pages: 545 - 558

14. Grain growth of chemical vapour deposited tungsten-22 wt % rhenium alloy

    • Y. T. Auck
    • J. G. Byrne

    Papers Pages: 559 - 564

15. Torque terms and grain-boundary energy measurement

    • Barbara K. Hodgson
    • H. Mykura

    Papers Pages: 565 - 570

16. Grain-boundary energy of copper at 1030° C

    • M. McLean

    Papers Pages: 571 - 576

17. Photoelastic constants of ADP

    • T. S. Narasimhamurty
    • K. Veerabhadra Rao
    • Howard E. Pettersen

    Papers Pages: 577 - 580

18. The sputtering of rough cylinders; applications to the thinning of fibres for transmission electron microscopy

    • P. J. Goodhew

    Papers Pages: 581 - 589

19. Epitaxial growth and structure of CdS films evaporated onto Ge

    • M. I. Abdalla
    • D. B. Holt
    • D. M. Wilcox

    Papers Pages: 590 - 600

20. The dislocation-free growth of gadolinium gallium garnet single crystals

    • B. Cockayne
    • J. M. Roslington

    Papers Pages: 601 - 605

21. Thermal decomposition of uranyl acetate

    • I. M. Yanachkova
    • M. Staevsky

    Papers Pages: 606 - 610

22. A new mesa-etching technique for gallium arsenide

    • B. M. Arora
    • V. T. Karulkar
    • S. Guha

    Letters Pages: 611 - 611

23. Stress relaxation in superplastic materials

    • G. S. Murty

    Letters Pages: 611 - 614

24. Short notices

    • C. H. L.
    • P. D. C.

    BookReview Pages: 615 - 616