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The ballad - Index of

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<strong>The</strong> Ballad<br />

is<br />

cepted principles indicated, with curious<br />

appropriateness to our problems, in the following<br />

passage from a work by a contemporary biological<br />

agnostic, where he is referring to the<br />

doctrine <strong>of</strong> the origin <strong>of</strong> species<br />

:<br />

" <strong>The</strong> many converging lines <strong>of</strong> evidence<br />

point so clearly to the central fact <strong>of</strong> the origin<br />

<strong>of</strong> the forms <strong>of</strong> life<br />

by an evolutionary process<br />

that we are compelled to accept this deduction<br />

;<br />

but as to almost all the essential features,<br />

whether <strong>of</strong> cause or mode, by which<br />

specific diversity has become what we perceive<br />

it to be, we have to confess an ignorance nearly<br />

total. <strong>The</strong> transformation <strong>of</strong> masses <strong>of</strong> population<br />

by imperceptible steps, guided by selection,<br />

is, as most <strong>of</strong> us now see, so inapplicable<br />

to the facts, whether <strong>of</strong> variation or specificity,<br />

that we can only marvel both at the want <strong>of</strong><br />

penetration displayed by the advocates <strong>of</strong> such<br />

a proposition, and at the forensic skill<br />

by which<br />

it was made to appear acceptable even for a<br />

time." 1<br />

We have but to substitute for " life " and<br />

"population" in the foregoing passage "poetry"<br />

and " verse " to see a prophecy <strong>of</strong> possible developments<br />

and subversions.<br />

My immediate function, however, as I conceive<br />

it, is to review the theories which have been<br />

1 Problems <strong>of</strong> Genetic^ by Pr<strong>of</strong>. W. Bateson.<br />

13

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