Broadened Scientific Interests
Theory of evolution involving inheritance of acquired characteristics and descent from one common ancestor ('one living filament')
Zoology book inference of divine guidance and design.
Two causes of evolution proposed
1. Sloshing fluid model
2. use and disuse
Book changes order of importance of 2 causes of evolution
1. use and disuse
2. sloshing fluid model
Describes natural selection by common descent in the appendix.
What would happen with limited resources with a growing human population: war, starvation or sin (birth control)
Evolution of life occurs due to general Law of Development of the universe.
"On the Tendency of Varieties to Depart Indefinitely from the Original Type" Brief outline of evolution by natural selection and sent to Darwin
1st convincing case for the reality of evolutionary change, outlined a mechanism for this evolutionary change. Natural selection.
Reults of pea hybridization experiments. Went unappreciated, generalizability of results not understood.
Natural variation in Drosphila, regional and seasonal variation in inherited traits
Three volumes, saltationism- evolution by large jumps
Population approach to Mendelian genetics
Excelled at study of genetic variation in natural populations and agricultural genetics