264 H. M. KALCKAR VOL. 12 (1953) 



20 M. Friedkin, submitted for public. 1953. 



21 G. W. Kidder, V. C. Dewey and R. E. Parks, Science, 109 (1948) 511. 



22 J. H. Mitchell, H. D. Skipper and L. L. Bennett, Cancer Res., 10 (1950) 647. 



23 A. NoviCK AND L. SziLARD, Nature, 170 (1952) 926. 

 2* N. Fries and B. Kihlman, Nature, 162 (1948) 573. 



25 J. W. RowEN and a. Kornberg, /. Biol. Chem., 193 (1951) 497. 



26 O. Warburg, W. Christian and A. Griese, Biochem. Z., 282 (1935) 157. 



2^ L. S. Zatman, N. O. Kaplan and S. P. Colowick, /. Biol. Chem., 200 (1953) 147. 



28 W. S. MacNutt, Biochem. J., 50 (1952) 384. 



28 H. M. Kalckar, in Zechmeister's Fortschritte d. Chem. org. Naturstoffe, IX (1952) 374. 



3" C. E. Carter, /. Am. Chem. Soc, 73 (1951) 1508. 



32 H. M. Kalckar and E. Cutolo, unpublished work. 



32 I\I. BuELL, Federation Proc, 11 (1952) 192. 



33 J. G. Buchanan, J. A. Bassham, A. A. Benson, D. F. Bradlay, M. Calvin, L. L. Daus, M. Good 

 MAN, P. M. Hayes, V. H. Lynch, L. T. Norris and A. T. Wilson, in McElroy and Glass, Symp. 

 on Phosphorus Metabolism, II (1952) 453. 



3* G. J. Button and I. D. E. Storey, Proc. Biochem. Soc. Biochem. J., 53 (1953) XXXVII. 



35 B. A. LowY, J. Davoll and G. B. Brown, /. Biol. Chem. 197 (1952) 591. 



36 B. L. Horecker, in McElroy and Glass Symp. on Phosphorus Metab., I (1951) 117. 

 3' G. R. Greenberg, J. Biol. Chem., 190 (1951) 611. 



38 J. G. Leder and Ph. Handler, /. Biol. Chem., 190 (1951) 611. 



39 J. M. Buchanan, in McElroy and Glass Symp. on Phosphorus Metabolism, II (1952) 406. 

 *" E. Bennett and H. M. Kalckar, unpublished. 



■*^ E. GoLDWASSER, Nature, 171 (1953) 126. 



*2 M. Saffran and E. Scarano, unpublished. 



*3 H. Klenow and B. Larsen, Arcli. Biochem., 37 (1952) 488. 



** F. Schlenk and M. J. Waldvogel, Arch. Biochem., 9 (1946) 455. 



*5 E. W. Sutherland, S. P. Colowick and C. F. Cori, /. Biol. Chem., 140 (1941) 309. 



*6 L. F. Leloir, in McElroy and Glass, Symp. On Phosphorus Metabolism, I (1951) 67. 



^^ R. Caputto, L. F. Leloir, C. E. Cardini and A. C. Paladini, /. Biol. Cheiu., 184 (1950) 333. 



*8 L. F. Leloir, Arch. Biochem., 33 (1951) 186. 



*® A. Kornberg, in McElroy and Glass, Symp. on PhospJtorus Metabolism, I (1932) 438. 



^° A. Kornberg, /. Biol. Chem., 182 (1950) 779. 



51 R. E. Trucco, Arch. Biochem., 34 (1951) 482. 



52 H. M. Kalckar and E. Cutolo, lie Congr. Internat. de Biochimie, (1952) 260. 



53 A. Munch-Petersen, H. M. Kalckar, E. B. Smith and E. Cutolo, unpublished. 

 5* O. Warburg and W. Christian, Biochem., 254 (1932) 438. 



55 A. C. Paladini and L. F. Leloir, Biochem. J., 51 (1952) 426. 



56 P. Berg and W. K. Joklik, unpublished. 



5'' H. M. Kalckar, A. Munch-Petersen and B. Braganca, unpublished. 



58 L. F. Leloir, unpublished. 



5" J. T. Park and M. J. Johnson, /. Biol. Chem., 179 (1949) 585. 



6" J. T. Park, in McElroy and Glass, Symposium on Phosphorus Metabolism, I (1951) 93. 



61 S. Bergstrom, H. Arvidson, E. Hammersten, N. a. Eliasson, P. Reichard .and H. V. Ubisch, 

 J . Biol. Chem., 179 (1949) 163. 



62 E. Scarano and H. M. Kalckar, Publ. di Staz. Zool. di Napoli, in press. 



63 R. B. Hirlbert, Federation Proc, XII (1953) 222. 



6* J. Strominger, in McElroy .and Glass, Symp. on Phosphorus Metabolism, II (1952) 422. 

 65 R. B. Merryfield and D. W. Woolley, Federation Proc, 11 (1952) 258. 



Received May ist, 1953 



