Paleontology: C. Stock
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1 Throughout this paper the term fragment is used to designate a portion of a chromosome resulting from one or more breaks in an original chromosome and having no spindle attachment. The term chromosome is applied to an original chromosome or the part of an original chromosome containing a spindle attachment. 2 Carlson, J. G., Genetics (in press). 3 Mather, K., Proc. Roy. Soc. London, B124, 97-106 (1937). 4 Lillie, R. S., Am. Jour. Physiol., 15, 46-84 (1905); Jour. Morph., 22, 695-730 (1910). I Darlington, C. D., Recent Advances in Cytology, Philadelphia (1937). 6 Belaf, K., Arch. Entwmch., 118, 359-484 (1929). 7 Be1af, K., Naturwiss., 15, 725-734 (1927); Zeit. Zellforsch. mikr. Anat., 10, 73-134 (1930), 17, 51-66 (1933). 8 Bleier, H., La Cellule, 40, 85-144 (1930); Genetica, 13, 27-76 (1931). 9 Schaede, R., Planta, 8, 383-397 (1929); Beitr. Biol. Pflanzen, 19, 141 177 (1931). 10 Schrader, F., Zeit. wiss. Zool., 142, 520-539 (1932). 1 Mather, K., and Stone, L. H. A., Jour. Genetics, 28, 1-24 (1933). 12 Upcott, M., Proc. Roy. Soc. London, B124, 336-361 (1937).
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