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181
R a p e r , K. B . a n d Fennell, D. I. (1952). Bull. Torrey Bot. Club 79, 25.
R a p e r , K. B . a n d Quinlan, M. S. (1958). J. gen. Microbiol. 18, 16.
Raper, K . B . a n d Thorn, C. (1941). Amer. J. Bot. 28, 69.
R a y , D . L. a n d H a y e s , R. E . (1954). J. Morphol. 95, 159.
Ross, I. K. (1960). Amer. J. Bot. 47, 54.
R o u n d a b u s h , R . L. (1933). Biol. Bull., Woods Hole 64, 253.
R u n y o n , E . H . (1942). Collecting Net 17, 88.
Rusch, H . P . (1959). 'Biological Organization, Cellular a n d Subcellular' (C. H .
W a d d i n g t o n , ed.), p p . 263-2 71. Pergamon, London.
Samuel, E . (1961). Dev. Biol. (in press).
Schmitt, F . O. (1941). Growth 5, 1.
Shaffer, B . M. (1953a). Nature, Bond. 171, 975
Shaffer, B . M. (1953b). 'Aggregation in cellular slime moulds', P h . D . thesis,
Cambridge University.
Shaffer, B . M. (1956a). Science 123, 1172.
Shaffer, B . M. (1956b). J. exp. Biol. 33, 645.
Shaffer, B . M. (1957a). Amer. Nat. 9 1 , 19.
Shaffer, B . M. (1957b). Quart. J. micr. Sei. 98, 377.
Shaffer, B . M. (1957c). Quart. J. micr. Sei. 98, 393.
Shaffer, B . M. (1958). Quart. J. micr. Sei. 99, 103.
Shaffer, B . M. (1959). Proc. 9th Int. Bot. Congr. (in press).
Shaffer, B . M. (1961a) (in press).
Shaffer, B . M. (1961b). Unpublished observations.
Skupienski, F . X . (1918). C.R. Acad. Sei., Paris 167, 960.
Slifkin, M. K . a n d Bonner, J . T. (1952). Biol. Bull., Woods Hole 102, 273.
Spiegel, M. (1954). Biol. Bull., Woods Hole 107, 130.
Sussman, M. (1952). Biol. Bull., Woods Hole 103, 446.
Sussman, M. (1954). J. gen. Microbiol. 10, 110.
Sussman, M. (1955a). J. gen. Microbiol. 13, 295.
Sussman, M. (1955b). 'Biochemistry a n d Physiology of t h e Protozoa' (S. H u t n e r
a n d A. Lwoff, eds.), Vol. I I , p p . 201-223. Academic Press, N . Y .
Sussman, M. (1956a). Biol. Bull., Woods Hole 110, 91.
Sussman, M. (1956b). Ann. Rev. Microbiol. 10, 21.
Sussman, M. (1958). 'The Chemical Basis of Development' (W. H . McElroy a n d
B . Glass, eds.), p p . 264-295. J o h n s H o p k i n s Press, Baltimore.
Sussman, M. (1959). Science 130, 446.
Sussman, M. a n d Bradley, S. G. (1954). Arch. Biochem. Biophys. 51, 428.
Sussman, M. a n d Ennis, H . L. (1959). Biol. Bull., Woods Hole 116, 304.
Sussman, M. a n d Lee, F . (1955). Proc. nat. Acad. Sei., Wash. 4 1 , 70.
Sussman, M., Lee, F . a n d K e r r , N . S. (1956). Science 123, 1171.
Sussman, M. a n d Noel, E . (1952). Biol. Bull., Woods Hole 103, 259.
Sussman, M. a n d Sussman, R. R . (1956). 'Cellular Mechanisms in Differentiation
a n d Growth' (D. R u d n i c k , ed.), p p . 125-154. Princeton University Press, N . J .
Sussman, R. R . a n d Sussman, M. (1953). Ann. N.Y. Acad. Sei. 56, 949.
Sussman, R. R . a n d Sussman, M. (1960) J. gen. Microbiol. 23, 287.
Sussman, R. R., Sussman, M. a n d Ennis, H . L. (1960). Dev. Biol. 2, 367.
Sussman, R. R., Sussman, M. a n d F u , F . L. (1958). Bad. Proc. 32,
Tieghem, P . v a n (1880). Bull. Soc. Bot. Fr. 27, 317.
Tieghem, P . v a n (1884). Bull. Soc. Bot. Fr. 31, 303.
Townes, P . L. a n d Holtfreter, J . (1955). J. exp. Zool. 128, 53.
T w i t t y , V. C. a n d N i u , M. C. (1954). J. exp. Zool. 125, 541.
Tyler, A. (1947). Growth 10 (Suppl.), 7.
G
A.M. 2