Articles:

S. de Boer

ON THE ARTIFICIAL EXTRAPAUSE OF THE VENTRICLE OF THE FROG'S HEART
Am J Physiol 57: 179-188, 1921 [PDF]  

S. de Boer

RESEARCHES ON THE RHYTHM AND METABOLISM OF THE BLED FROG'S HEART
Am J Physiol 57: 189-217, 1921 [PDF]  

F. T. Rogers and S. D. Wheat

STUDIES ON THE BRAIN STEM: V. Carbon Dioxide Excretion after Destruction of the Optic Thalamus and the Reflex Functions of the Thalamus in Body Temperature Regulation
Am J Physiol 57: 218-227, 1921 [PDF]  

Oscar Riddle and Ellinor H. Behre

STUDIES ON THE PHYSIOLOGY OF REPRODUCTION IN BIRDS: IX. On the Relation of Stale Sperm to Fertility and Sex in Ring-Doves
Am J Physiol 57: 228-249, 1921 [PDF]  

Oscar Riddle

STUDIES ON THE PHYSIOLOGY OF REPRODUCTION IN BIRDS: X. Inadequate Egg Shells and the Early Death of Embryos in the Egg
Am J Physiol 57: 250-263, 1921 [PDF]  

Oscar Riddle and Martin C. E. Hanke

STUDIES ON THE PHYSIOLOGY OF REPRODUCTION IN BIRDS: XI. Effects of Feeding Soluble Calcium Salts upon Reproductive Secretions and upon the Total Inorganic Constituents of the Egg Shell
Am J Physiol 57: 264-274, 1921 [PDF]  

Oscar Riddle and Cecil V. King

STUDIES ON THE PHYSIOLOGY OF REPRODUCTION IN BIRDS: XII. The Relation of Nerve Stimuli to Oviducal Secretions as Indicated by Effects of Atropine and Other Alkaloids
Am J Physiol 57: 275-290, 1921 [PDF]  

Pro. V Prewitt

COMPARATIVE STUDIES OF THE EARLY REACTIONS IN SPINAL CATS PRODUCED BY VARIOUS METHODS
Am J Physiol 57: 291-298, 1921 [PDF]  

A. J. Carlson and A. B. Luckhardt

STUDIES ON THE VISCERAL SENSORY NERVOUS SYSTEM: X. The Vagus Control of the Esophagus
Am J Physiol 57: 299-335, 1921 [PDF]  

E. J. Lund

QUANTITATIVE STUDIES ON INTRACELLULAR RESPIRATION: V. The Nature of the Action of KNC on Paramecium and Planaria, with an Experimental Test of Criticism, and Certain Explanations Offered by Child and Others
Am J Physiol 57: 336-349, 1921 [PDF]  

John Wood MacArthur

GRADIENTS OF VITAL STAINING AND SUSCEPTIBILITY IN PLANARIA AND OTHER FORMS
Am J Physiol 57: 350-386, 1921 [PDF]  

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