1. Some Comments About Unity in Psychology

   • Vicki L. Lee

   OriginalPaper 30 June 2017 Pages: 287 - 291

2. More on Variability as a Behavioral Concept

   • Lowell T. Crow

   OriginalPaper 30 June 2017 Pages: 293 - 300

3. When Historians Disagree: B. F. Skinner and E. G. Boring, 1930

   • S. R. Coleman

   OriginalPaper 30 June 2017 Pages: 301 - 314

4. Nonverbal Communication Between Motor Vehicle Drivers: Waves in Kansas

   • Kayla Hawk Plume
   • Paul F. Zelhart
   • Robert P. Markley

   OriginalPaper 30 June 2017 Pages: 315 - 321

5. The Relationship Between Type A and Type B Behavior Patterns and Level of Self-Esteem

   • James L. Tramill
   • P. Jeannie Kleinhammer-Tramill
   • Cherri S. Parks

   OriginalPaper 30 June 2017 Pages: 323 - 327

6. Conspecific Wounding in Free-Ranging R. Norvegicus From Stable and Unstable Populations

   • Robert J. Blanchard
   • Larry Pank
   • D. Caroline Blanchard

   OriginalPaper 30 June 2017 Pages: 329 - 335

7. Odor-Based Runway Performance of Rats as A Function of Type of Reinforcer and Multiple Deprivation Conditions

   • Stephen F. Davis
   • Susan M. Nash
   • Melanie S. Weaver

   OriginalPaper 30 June 2017 Pages: 337 - 351

8. Immediacy Of Reinforcement In Autoshaping With Pigeons

   • Lee D. Cooper
   • Aaron J. Brownstein

   OriginalPaper 30 June 2017 Pages: 353 - 364

9. Reinforcement-Based Response Elimination: The Effects Of Response-Reinforcement Interval and Response Specificity

   • Stuart Vyse
   • Thomas S. Rieg
   • Nelson F. Smith

   OriginalPaper 30 June 2017 Pages: 365 - 376

10. Concurrent Reinforcement of Topographically Different Responses and the Matching Relation

    • David P. Rider

    OriginalPaper 30 June 2017 Pages: 377 - 390

11. The Partial Reinforcement Hump in A Two-Choice Sequential Prediction Task With Alternatives of Unequal Frequency

    • Raymond E. Hartley
    • Carl D. Williams

    OriginalPaper 30 June 2017 Pages: 391 - 399

12. Response Interactions in Multiple Schedules: The Influence of Response Displacement

    • Iver H. Iversen

    OriginalPaper 30 June 2017 Pages: 401 - 410

13. Restricted Access to Collateral Behavior Affects Operant Behavior on Variable-Interval Schedules

    • Iver H. Iversen

    OriginalPaper 30 June 2017 Pages: 411 - 424

14. Book Reviews

    • Rolf O. Kroger
    • David C. Rowe
    • Alfred E. Hall

    BookReview 30 June 2017 Pages: 425 - 427

15. Books Received

    Announcement 30 June 2017 Pages: 428 - 428