Independence of variation from climate shown by several plant genera; CD asks for confirmation.
Progressing with book [Natural selection].
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Independence of variation from climate shown by several plant genera; CD asks for confirmation.
Progressing with book [Natural selection].
Thanks JDH for response on variation. Studying variations that seem correlated with environment, e.g., north vs south, ascending mountains.
CD’s weed garden: observations on slugs killing seedlings.
Seed-salting. One-seventh of the plants of any country could be transported 924 miles by sea and would germinate.
Curative power of hydropathy.
General hairiness of alpine plants questioned: direct environmental effect.
CD has long felt JDH is too hard on bad observers.
JDH cites W. H. Harvey’s observations on Fucus and David Don’s on Juncus as examples of variations that are independent of climate. There are many such cases. Gives his working scheme for categorising variation.