Contents

		Front Matter
	I	The Fundamental Principles of Genetics
	II	Particulate Theories of Heredity
	III	The Mechanism of Heredity
	IV	Chromosomes and Genes
	V	The Origin of Mutant Characters
	VI	Are Mutant Recessive Genes Produced by Losses of Genes?
	VII	The Location of Genes in Related Species
	VIII	The Tetraploids, or Fourfold Type
	IX	Triploids
	X	Haploids
	XI	Polyploid Series
	XII	Heteroploids
	XIII	Species Crossing and Changes in Chromosome Number
	XIV	Sex and Genes
	XV	Other Methods of Sex-Determination Involving the Sex Chromosomes
	XVI	Intersexes
	XVII	Sex Reversals
	XVIII	Stability of the Gene
	IX	General Conclusions
		Bibliography
		Index