抄録
1. The chromosome number of the pig-Large White Yorkshire -has been studied and evidence points to the diploid number being 38.
2. The meiotic stages have been studied and some observations have been made an the prophase, metaphase and anaphase stages.
3. It appears that the haploid number is 19 and that the sex chromosomes may exhibit irregular behaviour.
4. The evidence points to the sex-chromosomes being of the XY type.
