1. The statistical evidence for negative transfer in part-whole free recall

   • Michael S. Humphreys
   • Robert M. Schwartz

   Methods & Designs Pages: 287 - 291

2. Sources of variability in apparent-contrast measurements made by brightness matching

   • Thomas R. Corwin

   Methods & Designs Pages: 292 - 294

3. A precise method of measuring fixational eccentricity using the Maxwell spot centroid

   • Gillray L. Kandel
   • Harold E. Bedell

   Methods & Designs Pages: 295 - 296

4. Inhibitory stimulus control of the classically conditioned nictitating membrane response of the rabbit

   • Frederick W. Mis
   • Augustus R. Lumia
   • John W. Moore

   Methods & Designs Pages: 297 - 299

5. A comparison of leverpress and head-poke discriminated Sidman avoidance

   • Philip F. Carrigan
   • James O. Benedict
   • John J. B. Ayres

   Instrumentation & Techniques Pages: 301 - 303

6. Pause adjustment mechanism and measurement system (PAMMS)

   • Paul J. Jensen
   • Kenneth F. Ruder
   • Wayne D. Harrington

   Instrumentation & Techniques Pages: 304 - 312

7. An easily built and inexpensive apparatus for generating electroconvulsive shock

   • Dominic J. Zerbolio
   • Robert E. Hubbardt

   Instrumentation & Techniques Pages: 313 - 314

8. A device to record gross motor movements in human subjects

   • David L. Elwood

   Instrumentation & Techniques Pages: 315 - 316

9. A digital programmer for use with audio tape decks

   • Ronald H. Hopkinst

   Instrumentation & Techniques Pages: 317 - 319

10. The lickometer: A simple device for the analysis of licking as an operant

    • A. M. Wall
    • G. C. Walters
    • R. S. England

    Instrumentation & Techniques Pages: 320 - 322

11. Electronic holding relay for control of ac and dc circuits

    • David O. Pettijohn
    • E. C. T. Walker

    Instrumentation & Techniques Pages: 323 - 325

12. A “hand-shaking” multiplexer for the IBM 1800

    • Shiv Verma
    • Emanuel Donchin

    Computer Technology Pages: 327 - 330

13. An interface for transmitting discrete response information to a computer

    • Roland F. Millert
    • Peter G. Polson

    Computer Technology Pages: 331 - 333

14. Printout

    Announcement Pages: 334 - 338

15. Automatic measurement of food competition in the laboratory rat

    • Dominic J. Costanzo
    • David Hothersall

    Notes Pages: 338 - 339

16. Some determinants of performance in a commercially available one-way avoidance chamber

    • David L. Morse
    • Harriet Feinman
    • Gerard A. Dizinno

    Notes Pages: 340 - 341

17. Clarity of Haidinger’s brushes as a function of luminance

    • Stanley Coren
    • Clare P. Kaplan

    Notes Pages: 341 - 342

18. An approach to operating systems for computer-controlled behavioral research

    • Dennis O. Kuch

    Notes Pages: 342 - 342