Differential responses of growth zones to nutritive level, age, and temperature in the colonial hydroid Campanularia


  • Contribution No. 608 from the Department of Zoology, Indiana University. This investigation was supported by a research grant (H-1948) from the National Heart Institute, of the National Institutes of Health, Public Health Service, and by a grant-in-aid from the American Cancer Society upon recommendation of the Committee on Growth of the National Research Council. Other acknowledgments are in the text.