1. Invited commentary: Cryopreservation as a tool for the study of selectively bred lines in rodent behavioral genetics

   • John C. Crabbe
   • Ulrich Schneider
   • Peter Mazur

   OriginalPaper Pages: 307 - 312

2. Familiality of female and male homosexuality

   • J. Michael Bailey
   • Alan P. Bell

   OriginalPaper Pages: 313 - 322

3. Sensation seeking in opposite-sex twins: An effect of prenatal hormones?

   • Susan M. Resnick
   • Irving I. Gottesman
   • Matthew McGue

   OriginalPaper Pages: 323 - 329

4. Differences in heritability across groups differing in ability, revisited

   • Lee Anne Thompson
   • Douglas K. Detterman
   • Robert Plomin

   OriginalPaper Pages: 331 - 336

5. Is the gender difference in mental rotation disappearing?

   • Mary Soares Masters
   • Barbara Sanders

   OriginalPaper Pages: 337 - 341

6. Inbreeding depression and intelligence quotient among north Indian children

   • Badaruddoza
   • Mohammad Afzal

   OriginalPaper Pages: 343 - 347

7. Male mating speed inDrosophila melanogaster: Differences in genetic architecture and in relative performance according to female genotype

   • Pelayo Casares
   • Maria C. Carracedo
   • Lucia Garcia-Florez

   OriginalPaper Pages: 349 - 358

8. Characterization oflinne, a new autosomal eclosion rhythm mutant inDrosophila subobscura

   • P. Lankinen

   OriginalPaper Pages: 359 - 367

9. Sources of behavioral deviation modeled by early color preferences in quail. III. Developmental stability and normative canalization

   • Joseph K. Kovach

   OriginalPaper Pages: 369 - 377

10. Inheritance of predisposition to catalepsy in mice

    • A. V. Kulikov
    • E. Y. Kozlachkova
    • N. K. Popova

    OriginalPaper Pages: 379 - 384

11. Lack of strain differences in spatial learning among seizure-prone and seizure-resistant mice

    • Claire-Anne Gutekunst
    • Anne Hartney
    • Robert C. Green

    OriginalPaper Pages: 385 - 389

12. Genetic analysis of isolation-induced aggression. II. Postnatal environmental influences in AB mice

    • Hans-Jürgen Hoffmann
    • Regine Schneider
    • Wim E. Crusio

    OriginalPaper Pages: 391 - 394

13. Elevated dark-adapted thresholds in hypopigmented mice measured with a water maze screening apparatus

    • Jennifer M. Hayes
    • Grant W. Balkema

    OriginalPaper Pages: 395 - 403

14. Learning in inbred mice: Strain-specific abilities across three radial maze problems

    • Martine Ammassari-Teule
    • Hans-Jürgen Hoffmann
    • Clelia Rossi-Arnaud

    OriginalPaper Pages: 405 - 412

15. Genetic and behavioral tests of the McManus hypothesis relating response to selection for lateralization of handedness in mice to degree of heterozygosity

    • Robert L. Collins
    • Evelyn E. Sargent
    • Paul E. Neumann

    OriginalPaper Pages: 413 - 421