Chromosome Structure. Ix. Tradescantia Reflexa and Trillium Erectum

The Duration of Differentiation in Excised Anthers

“…stage. Among the published works that were used in interpreting these stages are papers by Swanson (1943), Hiraoka (1941), and Nebel and Ruttle (1936). However, the complete pairing observed [Vol.…”

The Behavior of Meiotic Prophase Chromosomes as Revealed Through the Use of High Temperatures

“…A large portion of the work on this subject has been purely observational in nature and involves but little experimental data (exceptions are Huskins and Wilson (1938), Matsuura (1937), and Swanson (1942». Nebel's (1941 recent review is illustrative of the many difficulties encountered in this field through deceptive imagery, but it is evident that additional observations, obtained under varying environmental conditions, are needed to supplement the data already at hand.…”