"Why is it not just as likely that there were as many small general nearly at first as now, and as great a disproportion in the number of their species?" - Asa Gray

Asa Gray: Why is it not just as likely that there were as many...

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"Why is it not just as likely that there were as many small general nearly at first as now, and as great a disproportion in the number of their species?" - Asa Gray

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