1. The effect on certain plants of altering the daily period of light;Adams;Annals Bot.,1923
2. Effect of the relative length of day and night and other factors of the environment on growth and reproduction in plants;Garner;Jour. Agr. Res.,1920
3. Further studies in photoperiodism;Garner;Jour. Agr. Res.,1923
4. Photoperiodism in relation to hydrogen-ion concentration of the cell sap and the carbohydrate content of the plant;Garner;Jour. Agr. Res.,1924