878 PERIODIC FUNCTIONS IN MAMMALS 



Toole, E. H., H. A. Borthwick, S. B. Hendricks, and V. K. Toole. 1954. 



Physiological studies on the effects of light and temperature on seed 



germination. Proc. Intern. Seed Testing Assoc, 18, 267-76. 

 Tribukait, B. 1954. Aktivitatsperiodik der Maus im kiinstlich verkLirtzen Tag. 



Naturwissenschaften, 41, 92-93. 

 . 1956. Die Aktivitatsperiodik der weissen Maus im Kunsttag von 16-29 



Stunden Lange. Z. vergleich. Physiol., 38, 479-90. 

 Tyler, F., C. Migeon, A. A. Florentin, and L. T. Samuels. 1954. The diurnal 



variation of 17-hydroxycorticosteroid levels in plasma. /. Clin. Endocrinol. 



Metabolism, 14, llA. 

 Utterback, R., and G. Ludwig. 1949. A comparative study of schedules for 



standing watches aboard submarines, based on body temperature cycles. 



NM004 003 (1), Naval Medical Research Inst., Bethesda, Md. 

 Vering, F. 1950. Einfluss der Tag- und Nachtschicht auf den Arbeiter. Wien. 



med. Wochschr., 100, 652-55. 

 Vermund, H., F. Halberg, C. P. Barnum, G. W. Nash, and J. J. Bittner. 1956. 



Physiologic 24-hour periodicity and hepatic phospholipid metabolism in rela- 

 tion to the mouse adrenal cortex. Am. J. Physiol, 186, 414-18. 

 Wadsworth, G. L., F. Halberg, P. Albrecht, and G. Skaff. 1957. Peak urinary 



excretion of 5-hydroxyindoleacetic acid following arousal in human beings. 



Physiologist, 1, 86. 

 Zander, H. A., J. Waerhaug, and F. Halberg. 1954. Effect of hypophysectomy 



upon cyclic mitotic activity in the retromolar mucosa of rats. J. Clin. 



Endocrinol. Metabolism, 14, 829. 

 Zimmermann, B., and M. M. Schoenbauer. 1952. Studies on the control of 



salt-regulating adrenal hormones. In Surgical Forum 1951, American College 



of Surgeons, W. B. Saunders Co., Philadelphia and London. Pp. 547-51. 



