1. Borthwick, H. A. (1956). Light in relation to growth and development of plants. Presidential address at the annual meeting of the American Society of Plant Physiologists, University of Connecticut, Storrs, August 27. Unpublished.
2. History of phytochrome;Borthwick,1972
3. A reversible photoreaction controlling seed germination;Borthwick;Proc. Natl. Acad. Sci. USA,1952
4. The reaction controlling floral initiation;Borthwick;Proc. Nail. Acad. Sci. USA,1952
5. Action of light on lettuce-seed germination;Borthwick;Bot. Gaz.,1954