1. on the acoustic analysis of primate vocalizations

   • Philip Lieberman

   Methods & Designs Pages: 169 - 174

2. The effects of response bias in two-alternative-forced-choice discrimination matrices

   • C. M. Holloway

   Methods & Designs Pages: 175 - 178

3. A method of producing a three-dimensional cathode ray tube display

   • William Simon

   Instrumentation & Techniques Pages: 179 - 180

4. What does the ultrasonic activity recording device measure?

   • Robert C. Bolles
   • George H. Sanders

   Instrumentation & Techniques Pages: 180 - 182

5. Liquid level detector with automatic refill and depletion indicator

   • David Krausman

   Instrumentation & Techniques Pages: 182 - 183

6. A new device for the application of electrical shock

   • Maurice E. T. Swinnen
   • Joseph V. Brady
   • Marshall G. POWELL

   Instrumentation & Techniques Pages: 184 - 184

7. A simple and inexpensive click-free audio switch

   • Arnold M. Small

   Instrumentation & Techniques Pages: 185 - 187

8. An automated multi-channel programming, data collection, and printout system for avoidance and stress conditioning of monkeys

   • Ronald I. Barensten
   • Joan S. Lockard

   Instrumentation & Techniques Pages: 187 - 189

9. A runway for chicks

   • J. Dutch

   Instrumentation & Techniques Pages: 189 - 190

10. Measurement of electroconvulsive shock Intensity

    • Robert R. Pagano

    Instrumentation & Techniques Pages: 190 - 191

11. A solid-state device for presenting moving shadows

    • Norman M. Weinberger
    • David A. Goodman

    Instrumentation & Techniques Pages: 192 - 193

12. A hardware random number generator for use with computer control of probabilistic contingencies

    • J. R. Millenson
    • G. D. Sullivan

    Computer Technology Pages: 194 - 196

13. Printout

    • Joseph B. Sidowsi

    Announcement Pages: 197 - 202