Notes and Comment in 1980

The genetics of Drosophila melanogaster courtship song—Diallel analysis

• D E Cowling

X-Chromosome involvement in male hybrid sterility from Glossina morsitans sub-species crosses

• C F Curtis
• P A Langley
• M A Trewern

A note on the test for the direction of dominance in the triple test cross in the presence of genotype × environment interaction

• J K Hewitt

Estimate of variance effective population size in a laboratory ceratitis population

• Domitien Debouzie

On the frequency of introgression of the radiate (T_r) allele from Senecio squalidus L. into Senecio vulgaris L.

• David F Marshall
• Richard J Abbott

Adaptive advantage for chiasma interference: a novel suggestion

• Marjorie P Maguire

Lack of recombination between X chromosomes in interspecific hybrids of the Anopheles gambiae group of species

• Christopher A Green

Further associations between morph-frequency and coexistence in Cepaea

• Wallace Arthur

Linkage studies on the mutant Short-wing in the mosquito Aedes aegypti

• A M Pearson

The hybrid sink effect

• N H Barton