1. Mucilaginous seeds: interactions with microorganisms;Barber;Plant Physiol.,1977
2. Some Properties of Capsella bursa:pastoris seeds in relation to certain soil bacteria, protozoans and nematodes;Barber;Plant Physiol.,1978
3. Capsella bursa:pastoris Are they "carnivorous"?;Barber;Carnivorous Plant Newsletters.,1978
4. Biosystematic studies on Capsella bursa:pastoris (Brassi-caceae): Enzyme polymorphism in natural populations;Bosbach;Plant System. Evol,1981
5. The formation of vegetable mould through the action of worms, with observations of their habitats;Darwin,1881