Thanks JDH for box of melastomes

and a very valuable reference from Daniel Oliver.

Is crossing Monochaetum which he thinks is dimorphic.

Is "sometimes half tempted to give up species & stick to experiments".

Pollen of Bletia hyacinthina is quite unlike other Bletia species but exactly the same as Epipactis.

Asks for the address of C. W. Crocker.

Admires JDH’s paper on Arctic plants ["Distribution of Arctic plants", Trans. Linn. Soc. Lond. 23 (1862): 251–348]. Such papers compel people to reflect on modification of species;

JDH will be driven to a cooled globe.

Serious erratum in paper.

New and original evidence in case of Greenland. Its flora requires accidental means of transport by ice and currents.