My dear Charles,

A few lines, merely to say that a month this autumn in Jamaica, & other W. Indian Islands, has brought me still-more closely within the circle of your doctrine, both as regards the vegetable & the human world. I had no adequate idea before of the luxuriant struggle of tropical vegetation, & of that wonderful parasitic life which plays so large a part in it.

I am interrupted here, but had little indeed more to say than this.

Ever your’s affecy | H Holland