. The cell in development and inheritance. Cells; Cells. 282 CELL-DIVISION AND DEVELOPMENT into apparent confusion, first by the discovery of Clapp ('91), Jordan, and Eycleshymer ('94) that in some cases there seems to be no con- stant relation whatever between the early cleavage-planes and the adult axes, even in the same species (teleosts, urodeles); and even in the frog Hertwig showed that the relation described by Newport and Roux is not invariable. Driesch finally demonstrated that the direc- tion of the early cleavage-planes might be artificially modified by pressure without perceptibly
. The cell in development and inheritance. Cells; Cells. 282 CELL-DIVISION AND DEVELOPMENT into apparent confusion, first by the discovery of Clapp ('91), Jordan, and Eycleshymer ('94) that in some cases there seems to be no con- stant relation whatever between the early cleavage-planes and the adult axes, even in the same species (teleosts, urodeles); and even in the frog Hertwig showed that the relation described by Newport and Roux is not invariable. Driesch finally demonstrated that the direc- tion of the early cleavage-planes might be artificially modified by pressure without perceptibly affecting the end-result (cf. p. 309). These facts prove that the promorphology of the early cleavage- forms can have no fundamental significance. Nevertheless, they are of the highest interest and importance ; for the fact that the forma-. A P. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York : The Macmillan company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcells, bookyear1896
