1. A mathematical method of describing electrocardiograms

   • L. G. Malinovskii
   • I. Sh. Pinsker
   • B. M. Tsukerman

   OriginalPaper Pages: 247 - 250

2. Some design problems of ultrasonic transducers

   • A. I. Drozhzhin
   • A. A. Tyumin
   • V. A. Vasil'ev

   OriginalPaper Pages: 251 - 255

3. Interference suppression in differential transistor amplifiers having unbalances

   • G. V. Il'inskii

   OriginalPaper Pages: 256 - 258

4. Polarographic method of determining oxygen in tissues

   • I. M. Epshtein
   • I. P. Berezin

   OriginalPaper Pages: 259 - 263

5. Ophthalmoplethysmograph

   • S. A. Vinokurskii
   • A. A. Stetsin
   • V. S. Lytkina

   OriginalPaper Pages: 264 - 267

6. Device for producing aerosols

   • L. Yu. Visnapuu

   OriginalPaper Pages: 268 - 270

7. Calculations for a direct-action pneumatic recording apparatus with pressure transmitter

   • O. P. Mitrofanov

   OriginalPaper Pages: 271 - 276

8. Equipment for optical workshops

   • L. V. Klimova

   OriginalPaper Pages: 277 - 278

9. Electrofilm heater

   • E. P. Danil'chenko
   • M. I. Gumilevskaya
   • A. V. Kimaev

   OriginalPaper Pages: 279 - 280

10. Standardization of shaking apparatus and their designations

    • R. M. Petrovskaya

    OriginalPaper Pages: 281 - 283

11. Apparatus for recording swallowing movements

    • A. M. Dembo

    Exchange Of Experience Pages: 284 - 285

12. Instruments for biopsy of the uterine cervix

    • A. I. Stupko

    Exchange Of Experience Pages: 286 - 287

13. New apparatuses in regular production

    • S. Salov

    Information Pages: 288 - 291

14. Apparatus for mammary gland radiography

    • I. A. Golubchin
    • N. N. Brazhnikov
    • I. P. Maktaz

    Information Pages: 292 - 293

15. New operating tables

    • A. O. Grundman

    Information Pages: 294 - 295

16. Dust-extracting installation for hospitals

    • L. S. Glagolev
    • Yu. V. Kuzin

    Information Pages: 296 - 296

17. Difficulties in spectacle production

    • B. M. Khromov

    Chronicles Pages: 297 - 299

18. Memorial portrait of S. S. Bryukhonenko

    Chronicles Pages: 300 - 300

19. Some aspects of spectacle production in the Czechoslovakian SSR

    • L. I. Aizenshtat
    • L. M. Rattur

    From Abroad Pages: 301 - 305