640 1SOTOPIC TRACERS AND NUCLEAR RADIATIONS [Chap. 30 



S 29 Thomas, M. D., R. H. Hendricks, and G. R. Hill: Apparent equilibrium between 



photosynthesis and respiration in an unrenewed atmosphere, Plant Physiol., 19, 



370-376 (1944). 

 S 30 Tuck, J. L.: Radioactive sulphur for biochemical experiments, J. Chem. Soc. for 



1939, pp. 1292-1294, 1939. 

 S 31 Wood, J. L., E. F. Williams, Jr., and N. Kingsland: The conversion of thio- 



cyanate sulfur to sulfate in the white rat, /. Biol. Chem., 170, 251-259 (1947). 



30.51. Tellurium 



Te 1 DeMeio, H. H., and F. C. Henriques, Jr.: Tellurium. IV. Excretion and dis- 

 tribution in tissues studied with a radioactive isotope, J. Biol. Chem., 169, 609-623 

 (1947). 



Te 2 Hamilton, J. G.: The metabolism of the fission products and the heaviest elements, 

 Radiology, 49, 325-343 (1947). 



30.52. Thorium 



The following list includes tracer studies only: 

 Th 1 Hamilton, J. G.: The metabolism of the fission products and the heaviest elements, 



Radiology, 49, 325-343 (1947). 

 Th 2 Lanz, H., K. G. Scott, J. Crowley, and J. G. Hamilton: The metabolism of 



thorium, protoactinium, and neptunium in the rat, U.S. Atom. Energy Comm. 



Declass. Doc. MDDC 648. 



30.53. Tritium 



T 1 Gurin, S., and A. M. Delluva: The biological conversion of radioactive phenyl- 

 alanine to adrenalin, Federation Proc, 6, 257 (1947). 



T 2 Gurin, S., and A. M. Delluva: The biological synthesis of radioactive adrenalin 

 from phenylalanine, /. Biol. Chem., 170, 545-550 (1947). 



T 3 Norris, T. H., S. Ruben, and M. B. Allen: Tracer studies with radioactive hydro- 

 gen, Some experiments on photosynthesis and chlorophyll, /. Am. Chem. Soc., 64, 

 3037-3040 (1942). 



T 4 Pace, N., L. Kline, H. K. Schachman, and M. Harfenist: Studies on body com- 

 position. IV. Use of radioactive hydrogen for measurement in vivo of total body 

 water, /. Biol. Chem., 168, 459-469 (1947). 



30.54. Uranium 



Literature through 1932 on biological effects of uranium is exhaustively covered in text 

 by Stoklasa and Penkava (Gen 118). So far there have been no strictly tracer studies for 

 this element. 



30.55. Xenon 



Xe 1 Hamilton, J. G.: The metabolism of the fission products and the heaviest elements, 

 Radiology, 49, 325-343 (1947). 



Xe 2 Jones, H. B.: Preoxygenation and nitrogen elimination. In: Studies on gas 

 exchange, U.S. Air Force, Air Materiel Command, Memo. Rept. MCREXD-696- 

 114, pp. 7-102, 1948. 



Xe 3 Jones, H. [B.], E. Dobson, and J. Lawrence: Tracer studies of blood-tissue per- 

 fusion rates at rest and a new criterion of blood mixing times, Abst. Comm., XVII 

 Internal. Physiol. Congr., 28-29 (1947). 



Xe 4 Lawrence, J. H., W. F. Loomis, C. A. Tobias, and F. H. Turpin: Preliminary 



