| Phylogenetic screening of the human genome: identification of differentially hybridizing repetitive sequence families | JA Lloyd, AN Lamb, SS Potter | 85 |
| Amino acid sequence versus morphological data and the interordinal relationships of mammals | AR Wyss, MJ Novacek, MC McKenna | 99 |
| Evolution of the 28S ribosomal RNA gene in anurans: regions of variability and their phylogenetic implications | DM Hillis, SK Davis | 117 |
| Identification of restriction-fragment-length polymorphisms in genomic DNA of the lesser snow goose (Anser caerulescens caerulescens) | TW Quinn, BN White | 126 |
| Mitochondrial DNA variation in field crickets across a narrow hybrid zone | RG Harrison, DM Rand, WC Wheeler | 144 |
| Accuracy of phylogenetic trees estimated from DNA sequence data | J Sourdis, C Krimbas | 159 |
| A rate-independent technique for analysis of nucleic acid sequences: evolutionary parsimony | JA Lake | 167 |
| Book reviews | B Walsh, FJ Ayala | 192 |
| Duplicated splice site (in a human class I histocompatibility antigen, HLA-CW3 gene) | J Jurka, T Smith | 199 |
| Announcement: Numerical taxonomy conference | | 201 |
